# Deploying the Webex App for Webex Calling users

Systems: Webex App

For Control Hub administrators, and Unified CM administrators where Unified CM provides calling, who roll out Webex App as a calling client.

Canonical: https://warmtransfer.net/guides/webex-app-calling-deployment

Last verified: 2026-09-24

Webex App delivers softphone calling across desktop and mobile devices when linked to a supported calling platform[^35][^52]. This guide steps through deploying the client, configuring discovery and calling behaviour, selecting an update cadence, and enabling desk phone control in Cisco Control Hub[^3][^58][^17].

## Before you start

- Cisco's Webex Calling configuration workflow establishes locations, PSTN, and phone numbers before calling options, calling behaviour, and device registration are configured[^62].
- If Unified CM provides calling, Mobile and Remote Access on Expressway must be in place if users will connect from outside the corporate network[^46].
- Note that Webex App displays a dial pad only to users provisioned with a phone service such as Unified CM, Webex Calling, or calling hosted by a service provider[^63].

## What changes by situation

- Which platform provides calling for these users? Webex Calling; Unified CM.
- How will the desktop app reach users' computers? Managed IT deployment; User self-installation.
- How should desktop app updates be controlled? Automatic updates (Controlled by Cisco); Scheduled updates.

## Step 1: Confirm licensing and prerequisites

**Webex Calling**

### Do
Confirm that each target user holds an appropriate Webex Calling licence[^35][^36]. The Webex Calling Professional user licence includes soft clients across desktop, mobile, and tablet[^35]. A Webex Calling Standard licensed user can have either one physical device or soft clients, but not both[^36]. We infer that a Webex Calling Standard user who takes Webex App as their soft client cannot also have a desk phone, so desk phone control from Webex App is not available to them[^38].

### Verify
Ensure every user is mapped to an intended location and provisioned with an extension, a number, or both[^33].

### Rollback
Suggested rollback: No configuration changes have been applied yet.

**Unified CM**

### Do
Confirm that each user holds a Unified Communications Manager licence[^8]. Disable Hybrid Calling or Webex Calling user enablement for these accounts before proceeding[^43].

### Verify
Confirm that neither Hybrid Calling nor Webex Calling remains enabled for any target user[^43].

### Rollback
Re-enabling Hybrid Calling or Webex Calling blocks Calling in Webex App (Unified CM) for that user[^43].

## Step 2: Entitle users for calling

**Webex Calling**

### Do
Assign the Webex Calling licence in Control Hub by opening Users, selecting the user, going to Summary > Licenses > Edit Licenses, choosing the service and subscription, and saving[^31]. Entitle the user by assigning a location and provisioning an extension, a number, or both[^33]. If setting up automatic licence assignment templates, ensure the phone number is in E.164 format, pre-provisioned and assigned to a valid Webex Calling location, and not assigned to any other user or service[^34]. With directory synchronization, automatic assignment uses the work phone number from the directory to look up that pre-provisioned number and location[^30].

### Verify
Open the user's Calling settings in Control Hub[^32]. If an error appears when opening Calling settings immediately after adding a Calling licence, Cisco recommends removing the Webex Calling licence and reassigning it[^32].

### Rollback
Remove the assigned licence under Users > Summary > Licenses > Edit Licenses and save the changes[^31].

**Unified CM**

### Do
In Unified CM, create CTI and voicemail UC services, combine them into a service profile, and assign that service profile to the end user[^50]. Configure the end user account with a Mail ID, select the Home Cluster checkbox, and add the account to the Standard CCM End Users and Standard CTI Enabled access control groups[^39]. Create softphone devices either automatically through Control Hub and Cloud-Connected UC, or manually in Unified CM as CSF, BOT, TCT, or TAB devices with a directory number and associated user[^51]. In softphone mode Webex App registers directly to Unified CM as a SIP device of type CSF on desktop, TCT or BOT on mobile, and TAB on tablets[^52].

### Verify
When using automatic softphone provisioning, verify that the device is created and the user is connected to phone services, which may take up to 5 minutes[^40].

### Rollback
Delete the softphone device from Unified CM, and unassign the service profile and access control groups from the end user record[^50][^51].

## Step 3: Make phone services discoverable

**Webex Calling**

### Do
For users licensed for Webex Calling, Webex App is the default calling application and no calling behaviour configuration is needed[^10].

### Verify
Suggested check: Confirm that the user account possesses an active Webex Calling entitlement.

### Rollback
Suggested rollback: No service discovery records require modification for cloud calling.

**Unified CM**

### Do
Publish the DNS SRV records `_cisco-uds` and `_collab-edge`, which Cisco recommends for discovering Unified CM phone services[^44]. If DNS SRV autodiscovery is not used, or if the sign-in email domain differs from the service discovery domain, create a UC Manager Profile in Control Hub under Management > Organization Settings > UC Manager Profiles > Add Profile[^44][^48][^47]. Populate the Voice Services Domain, and configure the UDS server address if the Webex App user ID does not match the Unified CM user ID[^47]. Note that when both a UDS server address and a voice services domain are configured, the server address determines the home cluster and DNS SRV autodiscovery is ignored, while the domain determines whether the client is on-premises or on MRA[^49].

### Verify
Sign in to Webex App on a test client to verify that authentication prompts for credentials without requesting manual server entry[^45]. Without DNS SRV autodiscovery or a UC Manager Profile, users must type the UDS server address or the UC domain into Webex App themselves[^45].

### Rollback
Remove the created UC Manager Profile from Control Hub under Management > Organization Settings > UC Manager Profiles, or withdraw the published DNS SRV records[^48][^44].

## Step 4: Set calling behaviour

**Webex Calling**

### Do
Retain default calling settings, as Webex App is the default calling application for users licensed for Webex Calling and no calling behaviour configuration is needed[^10].

### Verify
Suggested check: Verify that calling behaviour options remain unconfigured or set to defaults.

### Rollback
Suggested rollback: No calling behaviour overrides need reversal.

**Unified CM**

### Do
In Control Hub, navigate to Services > Calling > Settings > Webex App to set organization-level calling behaviour[^3]. Choose whether to route calls through Webex App or Cisco Jabber[^7]. For the domain setting, select Use the email domain of the user, which is the default, or Use UC Manager Profile for calling with a profile selected from the list[^6]. To vary behaviour across departments, apply calling templates at the group level[^2]. When a user belongs to several user groups, the calling template with the highest rank (Rank 1) takes precedence[^1]. To override settings for an individual user, navigate to Management > Users > the user > Calling > Calling Behavior and turn off Use organization level settings[^9].

### Verify
Inspect the effective settings on a sample user account, noting that a user-level setting overrides organization and group settings[^2].

### Rollback
To return an overridden user to the group template settings, click Reset on the user's calling behaviour page[^4]. To revert organization defaults, return to Services > Calling > Settings > Webex App and re-select the original routing and domain options[^3][^7][^6].

## Step 5: Set call options and in-call features

**Webex Calling**

### Do
In Control Hub, go to Services > Calling > Settings > Webex App > Call Settings to set the order of calling options shown in Webex App[^11]. Decide whether to enable single click-to-call, which uses the priority 1 call option and falls through to the next option if priority 1 is not set up[^13]. In the In-call feature access section under Services > Calling > Settings > Webex App, configure permissions for screen sharing, desktop and mobile video, moving calls to meetings, desktop conference calling, the automatic recording indicator, and the calling dock[^21].

### Verify
Restart Webex App on a test client to inspect the updated settings immediately, as changes to Webex App call settings may take up to 24 hours to reach users[^12].

### Rollback
Revert the toggles and option orders under Services > Calling > Settings > Webex App[^11][^21]. Note that organization in-call feature defaults apply to new users, and a user-level setting overrides them and does not automatically return to the organization default[^22].

**Unified CM**

### Do
In Control Hub, navigate to Services > Calling > Settings > Webex App > Call Settings to configure the display order of calling options, which applies to Unified CM deployments as well as cloud calling[^11]. Choose whether to enable single click-to-call to direct calls automatically to the priority 1 option or fall through to the next available option[^13].

### Verify
Restart Webex App on a test client to verify the updated calling option order without waiting up to 24 hours for propagation[^12].

### Rollback
Navigate to Services > Calling > Settings > Webex App > Call Settings and return the call options to their prior order[^11].

## Step 6: Install Webex App

**Managed IT deployment**

### Do
On Windows, push the MSI using administrator privileges with the parameter `ALLUSERS=1` to perform a per-computer installation[^23]. Include the switch `/qn` to run a silent installation and `ACCEPT_EULA=TRUE` to suppress the end-user licence agreement prompt[^29]. Optionally add the parameter `EMAIL` using a variable such as `$userPrincipalName` to prepopulate the sign-in address, and include `PREVENT_PRELOGIN_UPDATES` to stop Webex App updating until the user has signed in[^24][^28]. On mobile platforms, deploy Webex App using MDM or MAM through Microsoft Intune or AppConfig, or wrap the iOS IPA and Android AAB files[^26].

### Verify
Launch Webex App on a pilot Windows endpoint to confirm that it installed without user prompts and displays the pre-populated sign-in address[^29][^24].

### Rollback
Suggested rollback: Remove the client package from endpoints using your administrative deployment tool.

**User self-installation**

### Do
Direct end users to download and install Webex App on their endpoints[^27][^25]. On Windows, a user can install the app without administrator privileges, which installs per user under `%LocalAppData%\Programs\Cisco Spark`[^27]. On macOS, users install the client by opening the `Webex.dmg` file, and the application can be placed in any directory[^25].

### Verify
Suggested check: Confirm that users can launch the application and reach the authentication sign-in screen.

### Rollback
Suggested rollback: Have users uninstall Webex App using standard operating system application removal procedures.

## Step 7: Choose the update cadence

**Automatic updates (Controlled by Cisco)**

### Do
Configure or retain Automatic updates (Controlled by Cisco), which automatically updates users each month[^53]. Note that a new release takes 7 days to roll out to everyone, during which users can check for updates, and after which the update applies automatically[^61].

### Verify
In Control Hub, verify that the update policy reflects Automatic updates under Organization Settings > Templates > Recurring software updates for Webex app, or under Management > Users > the user > General[^58].

### Rollback
Switch the template or user setting to a scheduled cadence[^58]. Note that there is no option to revert users to an earlier Webex App desktop update[^57].

**Scheduled updates**

### Do
In Control Hub, apply scheduled updates for groups under Organization Settings > Templates > Recurring software updates for Webex app, or per user under Management > Users > the user > General[^58]. Select either the Latest channel, which operates on a 1-month cadence, or the Slow channel, which operates on a 4-month cadence and must be requested from Cisco[^56]. Set the deferral period, which can be up to 4 weeks on the Latest channel and up to 12 weeks on the Slow channel before users are upgraded automatically[^55]. Ensure update cadences align with client support policy, as a Webex App desktop update is supported for up to 3 months and 2 weeks[^59].

### Verify
Confirm in Control Hub that the target group or user displays the selected channel and deferral duration[^58]. Note that Cisco may apply critical patches to all users with immediate effect, outside the scheduled update cadence[^54].

### Rollback
Change the template or individual user profile setting back to Automatic updates (Controlled by Cisco)[^58][^53]. There is no option to revert users to an earlier Webex App desktop update[^57].

## Step 8: Enable desk phone control

**Webex Calling**

### Do
Instruct licensed users to open Webex App and select the desk phone as the calling device in Calling settings, allowing Webex App to act as a remote control for the phone[^17]. We infer that this is unavailable to Webex Calling Standard users who selected soft client access, because a Standard licence allows either one physical device or soft clients, but not both[^36][^38].

### Verify
Place a call from Webex App and verify that the desk phone places the call and reflects call activity on its display[^16]. Verify that holding, merging, transferring, and keypad tone entry can be controlled from the app during the call[^16].

### Rollback
Switch the calling device in Webex App back from the desk phone to the computer[^17][^64].

**Unified CM**

### Do
Ensure the end user account belongs to the Standard CTI Enabled access control group[^39]. For users controlling 9900, 8900, 8800, or DX phones, add the user to the Standard CTI Allow Control of Phones supporting Connected Xfer and conf group[^41]. For users controlling 6900 phones, add the Standard CTI Allow Control of Phones supporting Rollover Mode group[^41]. Associate the desk phone or Extension Mobility profile with the user account in Unified CM[^42]. In Webex App Calling settings, have the user select the desk phone as the calling device[^17].

### Verify
Verify that the associated desk phone or Extension Mobility profile appears as an available device in Webex App[^42]. In Health Checker, run the Phone Services test and verify that the desk phone server displays a green check mark[^20].

### Rollback
Remove the desk phone or Extension Mobility profile association from the user in Unified CM, or remove the user from the CTI access control groups[^42][^41].

## Step 9: Brief users on moving calls between devices

### Do
Inform users that calls move smoothly between Webex App and a desk phone when both share the same phone number and the user is connected to the desk phone[^37]. Note that moving a call between devices is supported only on the primary line; for a secondary line, the user must first select that line with the line selector[^15]. Where call pull is available, to pull an active call onto a desk phone, instruct users to press the Call Pull key on a Cisco desk phone or dial `*11` on a third-party phone[^14].

### Verify
Have a pilot user establish an active call on their primary line in Webex App and successfully pull the call to their desk phone[^15][^14].

### Rollback
Suggested rollback: No configuration rollback is applicable to user briefing instructions.

## Step 10: Verify end to end

**Webex Calling**

### Do
Open Health Checker in Webex App on Windows by selecting the profile picture > Help > Health Checker, or on Mac by selecting Help > Health Checker[^19].

### Verify
Verify that Health Checker confirms internet connectivity, cloud connectivity, and Webex cloud status from `status.webex.com`[^18]. Suggested check: Execute inbound and outbound test calls from the softphone to confirm that calls ring and connect cleanly.

### Rollback
Suggested rollback: No changes applied during verification require reversal.

**Unified CM**

### Do
Open Health Checker on Windows from the profile picture > Help > Health Checker, or on Mac from Help > Health Checker[^19]. Run the Phone Services test, and place test calls using both the softphone and a controlled desk phone[^20][^16].

### Verify
Confirm that the Phone Services test in Health Checker shows a green check mark for the softphone server, desk phone server, and voicemail server[^20].

### Rollback
Suggested rollback: No changes applied during verification require reversal.

## Applicability

Applies to: Cisco Control Hub, Cisco Webex App, Cisco Webex App with Unified CM, Cisco Webex Calling, and Cisco Unified CM. Deployments: on-premises, hybrid, and multi-tenant. Sources checked 2026-09-24. See also [Making and taking calls in the Webex App](https://warmtransfer.net/knowledge/webex-app-calling-user-guide), [Webex Calling architecture and deployment models](https://warmtransfer.net/knowledge/webex-calling-architecture), and [Using a Cisco desk phone on Webex Calling](https://warmtransfer.net/knowledge/webex-calling-desk-phone-user-guide).

## What remains uncertain

Whether call pull using `*11` applies to Unified CM calling estates or is limited to Webex Calling is not covered by the sources below. Specific administrative prerequisites and firmware baselines for controlling desk phones under Webex Calling are not covered by the sources below. Minimum software release requirements for Unified CM, Expressway, and Cloud-Connected UC are not covered by the sources below. Whether product update controls require a Pro Pack licence in every tenant organization is not covered by the sources below.

## Sources

[^1]: When a user belongs to several user groups, the calling template with the highest rank (Rank 1) takes precedence. Source: [Set up calling behavior](https://help.webex.com/en-us/article/1lvb42/Set-up-calling-behavior), Set calling behaviour at group level. Checked 2026-09-24.
[^2]: Calling behaviour can be set at organization level, at group level through calling templates, and at user level, and a user-level setting overrides organization and group settings. Source: [Set up calling behavior](https://help.webex.com/en-us/article/1lvb42/Set-up-calling-behavior), Configuration levels. Checked 2026-09-24.
[^3]: Organization-level calling behaviour is set in Control Hub under Services > Calling > Settings > Webex App. Source: [Set up calling behavior](https://help.webex.com/en-us/article/1lvb42/Set-up-calling-behavior), Set calling behaviour at organization level. Checked 2026-09-24.
[^4]: A Reset option appears only after an inherited calling behaviour has been overridden for a user, and it returns the user to the group template settings. Source: [Set up calling behavior](https://help.webex.com/en-us/article/1lvb42/Set-up-calling-behavior), Set calling behaviour at user level; reset. Checked 2026-09-24.
[^5]: For users without a paid Cisco calling service, the organization-level setting Open third-party app from Webex lets Webex App hand calls to a third-party calling application. Source: [Set up calling behavior](https://help.webex.com/en-us/article/1lvb42/Set-up-calling-behavior), Organization level setup; users without paid calling. Checked 2026-09-24.
[^6]: For Unified CM users the organization-level choice is Use the email domain of the user, which is the default, or Use UC Manager Profile for calling with a profile chosen from a list. Source: [Set up calling behavior](https://help.webex.com/en-us/article/1lvb42/Set-up-calling-behavior), Set calling behaviour at organization level; Unified CM users. Checked 2026-09-24.
[^7]: For users licensed for Unified CM, Control Hub calling behaviour can send calls either through Cisco Jabber or through Webex App. Source: [Set up calling behavior](https://help.webex.com/en-us/article/1lvb42/Set-up-calling-behavior), Overview of calling behaviour options; Unified CM licensed users. Checked 2026-09-24.
[^8]: A user must hold a Unified Communications Manager licence to be eligible for Unified CM calling behaviour configuration. Source: [Set up calling behavior](https://help.webex.com/en-us/article/1lvb42/Set-up-calling-behavior), Prerequisites. Checked 2026-09-24.
[^9]: A user-level calling behaviour override is made under Management > Users > the user > Calling > Calling Behavior by turning off Use organization level settings. Source: [Set up calling behavior](https://help.webex.com/en-us/article/1lvb42/Set-up-calling-behavior), Set calling behaviour at user level. Checked 2026-09-24.
[^10]: For users licensed for Webex Calling, Webex App is the default calling application and no calling behaviour configuration is needed. Source: [Set up calling behavior](https://help.webex.com/en-us/article/1lvb42/Set-up-calling-behavior), Overview of calling behaviour options; Webex Calling licensed users. Checked 2026-09-24.
[^11]: The order of calling options shown in Webex App is set in Control Hub under Services > Calling > Settings > Webex App > Call Settings, for organizations with Webex Calling or Unified CM deployed. Source: [Set calling options for Webex App users](https://help.webex.com/en-us/article/4djxsq/Configure-call-settings-for-your-organization-in-Control-Hub), Set calling options; prerequisites. Checked 2026-09-24.
[^12]: Changes to Webex App call settings may take up to 24 hours to reach users, and users can apply them sooner by restarting the app. Source: [Set calling options for Webex App users](https://help.webex.com/en-us/article/4djxsq/Configure-call-settings-for-your-organization-in-Control-Hub), Set calling options; note on propagation. Checked 2026-09-24.
[^13]: With single click-to-call enabled, the priority 1 call option is used, and if it is not set up the call falls through to the next option. Source: [Set calling options for Webex App users](https://help.webex.com/en-us/article/4djxsq/Configure-call-settings-for-your-organization-in-Control-Hub), Enable single click-to-call. Checked 2026-09-24.
[^14]: To pull a call onto a desk phone, the user presses the Call Pull key on a Cisco phone or dials *11 on a third-party phone. Source: [Webex App | Move a call from one device to another](https://help.webex.com/en-us/article/g9f3yo/Webex-App-|-Pull-a-call-from-one-device-to-another), Move a call; from your desk phone. Checked 2026-09-24.
[^15]: Moving a call between devices is supported only on the primary line; for a secondary line the user first selects that line with the line selector. Source: [Webex App | Move a call from one device to another](https://help.webex.com/en-us/article/g9f3yo/Webex-App-|-Pull-a-call-from-one-device-to-another), Move a call from one device to another; note. Checked 2026-09-24.
[^16]: While controlling a desk phone, the user can hold, merge and transfer calls from Webex App and use its dial pad to send tones, with call activity shown on the phone display. Source: [Webex App | Make calls with your desk phone](https://help.webex.com/en-us/article/5mgmmb/Webex-App-|-Make-calls-with-your-desk-phone), Make calls with your desk phone; during the call. Checked 2026-09-24.
[^17]: To place calls through a desk phone, the user selects the desk phone as the calling device in Webex App's Calling settings, and Webex App then acts as a remote control for the phone. Source: [Webex App | Make calls with your desk phone](https://help.webex.com/en-us/article/5mgmmb/Webex-App-|-Make-calls-with-your-desk-phone), Make calls with your desk phone. Checked 2026-09-24.
[^18]: Health Checker also tests internet connectivity, the connection to Webex cloud components, and Webex cloud status from status.webex.com. Source: [Webex App | Test your connection with the Health Checker](https://help.webex.com/en-us/article/n2g8glg/Webex-App-|-Test-Your-Connection-with-the-Health-Checker), Health Checker tests; Internet, Server Connection, Cloud. Checked 2026-09-24.
[^19]: Health Checker opens on Windows from the profile picture > Help > Health Checker and on Mac from Help > Health Checker. Source: [Webex App | Test your connection with the Health Checker](https://help.webex.com/en-us/article/n2g8glg/Webex-App-|-Test-Your-Connection-with-the-Health-Checker), Open the Health Checker. Checked 2026-09-24.
[^20]: Health Checker's Phone Services test, for Unified CM only, checks the VDI softphone server, desk phone server and voicemail server and shows a green check mark when they are reachable. Source: [Webex App | Test your connection with the Health Checker](https://help.webex.com/en-us/article/n2g8glg/Webex-App-|-Test-Your-Connection-with-the-Health-Checker), Phone Services (Unified CM only). Checked 2026-09-24.
[^21]: The In-call feature access section under Services > Calling > Settings > Webex App controls features including screen sharing, desktop and mobile video, moving calls to meetings, desktop conference calling, the automatic recording indicator and the calling dock. Source: [Configure in-call features from Control Hub](https://help.webex.com/article/4amzih/Configure-in-call-features-from-Control-Hub), In-call feature access section. Checked 2026-09-24.
[^22]: Organization in-call feature defaults apply to new users, and a user-level setting overrides them and does not automatically return to the organization default. Source: [Configure in-call features from Control Hub](https://help.webex.com/article/4amzih/Configure-in-call-features-from-Control-Hub), Organization and user level settings. Checked 2026-09-24.
[^23]: The MSI parameter ALLUSERS=1 performs a per-computer installation of Webex App and requires administrator privileges. Source: [Webex App | Installation and automatic upgrade](https://help.webex.com/article/nw5p67g/Cisco-Webex-Teams-Installation-and-Automatic-Upgrade), Command line parameters; ALLUSERS. Checked 2026-09-24.
[^24]: The MSI parameter EMAIL prepopulates the Webex App sign-in address and accepts variables such as $userPrincipalName. Source: [Webex App | Installation and automatic upgrade](https://help.webex.com/article/nw5p67g/Cisco-Webex-Teams-Installation-and-Automatic-Upgrade), Command line parameters; EMAIL. Checked 2026-09-24.
[^25]: On macOS Webex App is installed by opening the Webex.dmg file, and the app can be placed in any directory. Source: [Webex App | Installation and automatic upgrade](https://help.webex.com/article/nw5p67g/Cisco-Webex-Teams-Installation-and-Automatic-Upgrade), Install on Mac. Checked 2026-09-24.
[^26]: Administrators can deploy the Webex App mobile apps with MDM or MAM through Microsoft Intune or AppConfig, or by wrapping the iOS IPA and Android AAB files. Source: [Webex App | Installation and automatic upgrade](https://help.webex.com/article/nw5p67g/Cisco-Webex-Teams-Installation-and-Automatic-Upgrade), Mobile apps section. Checked 2026-09-24.
[^27]: On Windows a user can install Webex App without administrator privileges, and it installs per user under %LocalAppData%\Programs\Cisco Spark. Source: [Webex App | Installation and automatic upgrade](https://help.webex.com/article/nw5p67g/Cisco-Webex-Teams-Installation-and-Automatic-Upgrade), Install options; per computer or per user. Checked 2026-09-24.
[^28]: The MSI parameter PREVENT_PRELOGIN_UPDATES stops Webex App updating until the user has signed in. Source: [Webex App | Installation and automatic upgrade](https://help.webex.com/article/nw5p67g/Cisco-Webex-Teams-Installation-and-Automatic-Upgrade), Command line parameters; PREVENT_PRELOGIN_UPDATES. Checked 2026-09-24.
[^29]: The MSI switch /qn runs a silent installation and ACCEPT_EULA=TRUE suppresses the end-user licence agreement prompt. Source: [Webex App | Installation and automatic upgrade](https://help.webex.com/article/nw5p67g/Cisco-Webex-Teams-Installation-and-Automatic-Upgrade), Command line parameters; /qn and ACCEPT_EULA. Checked 2026-09-24.
[^30]: With directory synchronization, automatic licence assignment uses the work phone number from the directory to look up a pre-provisioned Webex Calling number and its location. Source: [Set up automatic license assignment templates for Webex Calling users](https://help.webex.com/en-us/article/n8iptxg/Set-up-automatic-license-assignment-templates-for-Webex-Calling-users), Directory synchronization method. Checked 2026-09-24.
[^31]: An administrator assigns a service licence to one user in Control Hub by opening Users, selecting the user, going to Summary > Licenses > Edit Licenses, choosing the service and subscription, and saving. Source: [Edit service licenses in Control Hub for individual users](https://help.webex.com/en-us/article/9dmqgv/Edit-service-licenses-in-Control-Hub-for-individual-users), Edit licences for an individual user. Checked 2026-09-24.
[^32]: If an error appears when opening a user's Calling settings immediately after adding a Calling licence, Cisco recommends removing the Webex Calling licence and reassigning it. Source: [Edit service licenses in Control Hub for individual users](https://help.webex.com/en-us/article/9dmqgv/Edit-service-licenses-in-Control-Hub-for-individual-users), Note under edit licences. Checked 2026-09-24.
[^33]: To be entitled with Webex Calling a user must be assigned to a location and provisioned with an extension, a number, or both. Source: [Set up automatic license assignment templates for Webex Calling users](https://help.webex.com/en-us/article/n8iptxg/Set-up-automatic-license-assignment-templates-for-Webex-Calling-users), Introduction; requirements to entitle users. Checked 2026-09-24.
[^34]: For automatic licence assignment the user's number must be in E.164 format, pre-provisioned and assigned to a valid Webex Calling location, and not assigned to any other user or service. Source: [Set up automatic license assignment templates for Webex Calling users](https://help.webex.com/en-us/article/n8iptxg/Set-up-automatic-license-assignment-templates-for-Webex-Calling-users), Phone number requirements. Checked 2026-09-24.
[^35]: The Webex Calling Professional user licence includes soft clients: Webex App on desktop, mobile and tablet. Source: [Features available by license type for Webex Calling](https://help.webex.com/en-us/article/n1qbbp7/Features-available-by-license-type-for-Webex-Calling), Licence feature table; Soft Clients row. Checked 2026-09-24.
[^36]: A Webex Calling Standard licensed user can have either one physical device or soft clients, but not both. Source: [Features available by license type for Webex Calling](https://help.webex.com/en-us/article/n1qbbp7/Features-available-by-license-type-for-Webex-Calling), Licence feature table; Soft Clients and devices rows. Checked 2026-09-24.
[^37]: Calls move smoothly between Webex App and a desk phone when both share the same phone number and the user is connected to the desk phone. Source: [Webex App | Move a phone call between Webex App and your desk phone](https://help.webex.com/en-us/article/zoxb3w/Webex-App-Move-a-phone-call-between-Webex-App-and-your-desk-phone), Move a phone call between Webex App and your desk phone; introduction. Checked 2026-09-24.
[^38]: A Webex Calling Standard user who takes Webex App as their soft client cannot also have a desk phone, so desk phone control from Webex App is not available to them (inferred). Source: [Features available by license type for Webex Calling](https://help.webex.com/en-us/article/n1qbbp7/Features-available-by-license-type-for-Webex-Calling), Licence feature table; Soft Clients and devices rows. Checked 2026-09-24.
[^39]: Unified CM end users for Calling in Webex App need a Mail ID, the Home Cluster checkbox, and membership of the Standard CCM End Users and Standard CTI Enabled access control groups. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Configure end users. Checked 2026-09-24.
[^40]: Automatic softphone provisioning may take up to 5 minutes to create the device and connect the user to phone services. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Auto provision devices. Checked 2026-09-24.
[^41]: Desk phone control of 9900, 8900, 8800 and DX phones also needs the group Standard CTI Allow Control of Phones supporting Connected Xfer and conf, and 6900 phones need Standard CTI Allow Control of Phones supporting Rollover Mode. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Configure end users; access control groups for desk phone control. Checked 2026-09-24.
[^42]: With Unified CM, desk phones and Extension Mobility profiles associated with the user's account appear in Webex App as devices the user can control over CTI. Source: [Deployment guide for Calling in Webex App (Unified CM) - Overview of Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_01.html), Overview; desk phone control. Checked 2026-09-24.
[^43]: Hybrid Calling or Webex Calling user enablement must be disabled before Calling in Webex App (Unified CM) can be enabled for a user. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Set calling behaviour and UC Manager profiles in Control Hub; before you begin. Checked 2026-09-24.
[^44]: Webex App discovers Unified CM phone services through DNS SRV records _cisco-uds and _collab-edge, which Cisco recommends, or through manual connection settings. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Service discovery. Checked 2026-09-24.
[^45]: Without DNS SRV autodiscovery or a UC Manager Profile, users must type the UDS server address or the UC domain into Webex App themselves. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Users authenticate with phone services. Checked 2026-09-24.
[^46]: Mobile and Remote Access on Expressway is needed if Webex App users must connect to Unified CM calling from outside the corporate network. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Prepare / MRA requirement. Checked 2026-09-24.
[^47]: A UC Manager Profile carries a Voice Services Domain, used when the sign-in email domain differs from the service discovery domain, and a UDS server, used when the Webex App user ID does not match the Unified CM user ID. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Create a UC Manager profile; field descriptions. Checked 2026-09-24.
[^48]: A UC Manager Profile is created in Control Hub under Management > Organization Settings > UC Manager Profiles > Add Profile. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Create a UC Manager profile. Checked 2026-09-24.
[^49]: When both a UDS server address and a voice services domain are configured, the server address determines the home cluster and DNS SRV autodiscovery is ignored, while the domain determines whether the client is on-premises or on MRA. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Create a UC Manager profile; note on server address and domain. Checked 2026-09-24.
[^50]: For Calling in Webex App (Unified CM), the administrator creates CTI and voicemail UC services, combines them in a service profile, and assigns that service profile to the end user. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Configure UC services; configure service profile with UC services; configure end users. Checked 2026-09-24.
[^51]: Webex App softphone devices can be created automatically through Control Hub and Cloud-Connected UC, or manually in Unified CM as CSF, BOT, TCT or TAB devices with a directory number and associated user. Source: [Deployment guide for Calling in Webex App (Unified CM) - Deploy Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_010.html), Create softphone devices; auto provision devices. Checked 2026-09-24.
[^52]: In softphone mode Webex App registers directly to Unified CM as a SIP device of type CSF on desktop, TCT or BOT on mobile, and TAB on tablets. Source: [Deployment guide for Calling in Webex App (Unified CM) - Overview of Calling in Webex App (Unified CM)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_01.html), Overview; softphone. Checked 2026-09-24.
[^53]: With the update type Automatic updates (Controlled by Cisco), users are updated automatically each month. Source: [Webex App desktop update controls](https://help.webex.com/en-us/article/wlgw73/Product-update-controls-for-Webex-App-desktop-versions), Update types. Checked 2026-09-24.
[^54]: Cisco may apply critical patches to all users with immediate effect, outside the scheduled update cadence. Source: [Webex App desktop update controls](https://help.webex.com/en-us/article/wlgw73/Product-update-controls-for-Webex-App-desktop-versions), Critical patches note. Checked 2026-09-24.
[^55]: Updates can be deferred for up to 4 weeks on the Latest channel and up to 12 weeks on the Slow channel, after which users are upgraded automatically. Source: [Webex App desktop update controls](https://help.webex.com/en-us/article/wlgw73/Product-update-controls-for-Webex-App-desktop-versions), Deferral. Checked 2026-09-24.
[^56]: Scheduled updates offer a Latest channel with a one-month cadence and a Slow channel with a four-month cadence, and the Slow channel must be requested from Cisco. Source: [Webex App desktop update controls](https://help.webex.com/en-us/article/wlgw73/Product-update-controls-for-Webex-App-desktop-versions), Update types; schedule by cadence. Checked 2026-09-24.
[^57]: There is no option to revert users to an earlier Webex App desktop update. Source: [Webex App desktop update controls](https://help.webex.com/en-us/article/wlgw73/Product-update-controls-for-Webex-App-desktop-versions), Supported versions; reverting. Checked 2026-09-24.
[^58]: Webex App update cadence is set for groups in Control Hub under Organization Settings > Templates > Recurring software updates for Webex app, and per user under Management > Users > the user > General. Source: [Webex App desktop update controls](https://help.webex.com/en-us/article/wlgw73/Product-update-controls-for-Webex-App-desktop-versions), Apply update controls to groups; apply to individual users. Checked 2026-09-24.
[^59]: A Webex App desktop update is supported for up to 3 months and 2 weeks. Source: [Webex App desktop update controls](https://help.webex.com/en-us/article/wlgw73/Product-update-controls-for-Webex-App-desktop-versions), Supported versions. Checked 2026-09-24.
[^60]: The installation article says organizations with Pro Pack can manage Webex App update frequency through product update controls. Source: [Webex App | Installation and automatic upgrade](https://help.webex.com/article/nw5p67g/Cisco-Webex-Teams-Installation-and-Automatic-Upgrade), Automatic upgrade; product update controls. Checked 2026-09-24.
[^61]: A new Webex App release takes 7 days to roll out to everyone, users can check for updates during that window, and after it the update is applied automatically. Source: [Webex App | Installation and automatic upgrade](https://help.webex.com/article/nw5p67g/Cisco-Webex-Teams-Installation-and-Automatic-Upgrade), Automatic upgrade. Checked 2026-09-24.
[^62]: Cisco's Webex Calling configuration workflow sets up locations, PSTN and phone numbers before calling options, calling behaviour and device registration. Source: [Webex Calling Configuration Workflow](https://help.webex.com/en-us/article/32gfts/Webex-Calling-Configuration-Workflow), Workflow task list. Checked 2026-09-24.
[^63]: Webex App shows a dial pad only to users set up with a phone service such as Unified CM, Webex Calling or calling hosted by a service provider. Source: [Webex App | Call anyone with a phone number](https://help.webex.com/en-us/article/ndpb9acb/Webex-App-|-Call-anyone-with-a-phone-number), introductory note above the Desktop section. Checked 2026-09-22.
[^64]: To place calls through a desk phone, the user goes to Calling in Webex App and makes sure the desk phone is selected; if My Computer is shown instead, they select it and switch to the desk phone. Source: [Webex App | Make calls with your desk phone](https://help.webex.com/en-us/article/5mgmmb/Webex-App-|-Make-calls-with-your-desk-phone), opening procedure. Checked 2026-09-22.