# Webex Calling paging groups Canonical: https://warmtransfer.net/knowledge/webex-calling-paging-groups Last verified: 2026-09-25 A Webex Calling paging group lets a user place a one-way group page to up to 75 targets by dialing the number or extension assigned to the paging group[^29]. The Group Paging service calls all assigned targets simultaneously[^48]. ## How it works A group page provides one-way audio: the originator has a talk path to the targets, and targets have no talk path to the originator or to each other during the page[^43]. When the page is set up to the targets, the originator hears a 'Paging System Ready' announcement telling them to begin speaking[^46]. The originator ends the page by hanging up[^22]. A paging group must contain more than 1 member[^38], and each paging group member must have at least 1 registered device[^47]. If a caller pages a group that has no registered devices, the caller hears a busy signal[^12]. Paging groups function only on a member's primary devices and do not work on shared devices[^45]. If a paging target does not answer a page, the page does not forward to that target's voicemail[^41]. Targets with Do Not Disturb enabled are not paged[^19]. Furthermore, if a target has configured Single Number Reach (Office Anywhere), Call Forwarding, or Simultaneous Ring, the page is not sent to those destinations[^40]. ## Device experience Paging groups work only with Cisco IP Phone 6800, 7800, 8800, 8875, and 9800 Series, as well as Cisco ATA 191 and ATA 192[^50]. On a Cisco ATA 192, paging works only if an external device with auto-answer is connected to the ATA or the page is answered manually within 1 to 2 seconds[^11]. Cisco's end-user documentation on making and answering paging calls applies to the Cisco Desk Phone 9800 Series and Cisco Video Phone 8875 when registered to Webex Calling or Cisco BroadWorks[^4]. On a 9800 or 8875 phone, dialing the paging group number initiates the page, produces 1 short beep, and automatically ends any active call[^2]. For an incoming page on these models, the call is answered automatically with the microphone muted following 3 short beeps, and the user cannot decline the page[^5]. A top-priority page on a 9800 or 8875 phone may end an active Webex meeting, whereas a lower-priority page notification appears after the meeting finishes[^1]. ## Multicast paging on endpoints Control Hub device parameters for 9800 and 8875 phones include a Multicast Paging Group section under Phone settings that supports up to 10 multicast paging groups per device[^30]. Multicast paging device settings can be configured at the organization, location, or device level, with lower levels taking precedence[^33]. Each multicast paging group on an 8875 or 9800 phone requires a multicast address from the paging server and an individual port, which must be an even number between 1000 and 65534[^35]. Phones in the same group share a multicast number compliant with the line's dial plan, and setting the listen configuration to yes enables the phone to receive pages for that group[^34]. The multicast paging script syntax supports G711a, G711u, G722, or G729 codecs[^31]. Priority for multicast paging on 9800 and 8875 phones is defined from 0 to 3, where 0 holds the active call, 1 mixes page and call audio, 2 plays an alert tone and requires the call to be held or ended, and 3 ignores the page during an active call[^36]. WarmTransfer's reading of the sources is that multicast paging configured directly in phone device settings is likely a distinct mechanism from the Control Hub paging group feature, as multicast paging is configured per phone with an address and port, whereas a cloud paging group uses a dialable number and a target list[^32]. ## Configuration and licensing Paging groups are created and edited in Control Hub by navigating to Services > Calling > Features and selecting the Paging Group card[^39]. Administrators can edit an existing group's general settings, phone number, paging targets, and paging originators[^21]. Each paging group is provisioned under a specific location and assigned a name and a phone number or extension, and multiple paging groups can exist within a single location[^28]. The assigned extension must be available and unassigned[^23]. Group setup includes selecting a language from a drop-down menu[^25]. The group's Dial by Name field accepts ASCII characters[^18]. Administrators can present the paging group name as the caller ID or specify a custom caller ID name of up to 128 Unicode characters[^14][^13]. Paging targets can be users, workspaces, or virtual lines[^51][^58]. Paging originators are configured by searching for and adding users, workspaces, or virtual lines[^44]. Administrators can optionally copy the configured targets into the originator list during group creation in Control Hub[^16]. A single user can serve simultaneously as both an originator and a target within the same group[^20]. Group Paging is listed as an included location feature provided at no extra cost[^27]. Paging is supported across all 4 Webex Calling license types: Professional User, Professional Workspace, Standard, and Workspace[^26]. ## Unified CM comparison and integrations In Cisco Unified Communications Manager (Unified CM), paging is provided via integration with Cisco Paging Server, deployed as the InformaCast Virtual Appliance[^56]. InformaCast Basic Paging is included at no charge for Unified CM and Business Edition customers, supporting live audio paging to individual Cisco IP phones or groups of up to 50 phones[^55][^54]. Advanced notification requirements rely on InformaCast Advanced Notification, a separately licensed product that delivers text and audio to overhead paging systems, other devices, and an unlimited number of Cisco IP phones[^53]. Unified CM integrates with Cisco Paging Server using SIP, SNMP, AXL, and CTI over a multicast-enabled network with G.711 regions[^57]. Cisco's end-of-sale listing contains a notice dated 2017-03-02 ending sales of Cisco Singlewire InformaCast Advanced perpetual licenses, but does not list an end-of-sale notice for Cisco Paging Server as a whole[^24]. WarmTransfer's reading of the sources is that native Webex Calling group paging handles more endpoints (up to 75 targets without an on-premises server) than Unified CM's bundled InformaCast Basic Paging (up to 50 phones), but does not replace InformaCast Advanced Notification for text alerts, overhead endpoints, or unlimited-endpoint distribution[^15]. Furthermore, WarmTransfer's reading of the sources is that because Cisco's Unified CM to Webex Calling migration documentation omits paging from its list of migrated features, paging configurations probably require manual recreation[^37]. For third-party endpoints and external systems: - Algo SIP endpoints, such as the 8301 SIP Paging Adapter, register to Webex Calling as customer-managed third-party SIP devices added in Control Hub[^7]. Algo devices require firmware 3.4.4 or later, TLS signalling, and SRTP using AES_CM_128_HMAC_SHA1_80; first-generation models without TLS/SRTP support cannot be used[^6]. - CyberData includes SIP paging adapters (such as the model 011233 SIP Paging Adapter) in its Cisco Webex Calling IP-to-analog adapter and paging server product line[^17]. - Singlewire announced InformaCast integration for Webex Calling on 2021-10-19, extending paging and notification support to IP speakers, overhead systems, desktops, digital signage, and mobile devices[^49]. ## See also - See also [Webex Calling calling features and feature parity vs UCM](https://warmtransfer.net/knowledge/webex-calling-features). - See also [Webex Calling supported devices and MPP firmware](https://warmtransfer.net/knowledge/webex-calling-device-support). - See also [Webex Calling license types and entitlements](https://warmtransfer.net/knowledge/webex-calling-licensing). - See also [Webex Calling locations and number management](https://warmtransfer.net/knowledge/webex-calling-locations-numbers). ## Applicability Applies to: Cisco Webex Calling, Cisco Desk Phone 9800, Cisco Webex Calling device settings, Cisco Webex Calling migration, Cisco Unified Communications Manager, Cisco Paging Server, Algo SIP endpoints, Singlewire InformaCast, and CyberData SIP paging adapters. Deployments: on-premises and multi-tenant. Sources checked 2026-09-25. For customers in the Asia-Pacific region, the paging group Calling Line field is populated automatically with the username and cannot be changed[^8]. Algo device requirements apply to firmware version 3.4.4 and later[^7][^6]. Singlewire InformaCast integration with Webex Calling applies as of 2021-10-19[^49]. ## What remains uncertain Whether third-party SIP paging adapters (Algo or CyberData) can serve as paging group targets is not covered by the sources below. The maximum number of paging originators per group is not covered by the sources below. How paging is handled in UCM to Webex Calling migration tooling is not covered by the sources below. Regarding on-call target behaviour, sources disagree between admin documentation and 9800 priority levels, and the resolution is not covered by the sources below. Whether the Webex App soft client can function as a paging target or originator is not covered by the sources below. The full paging group API schema, including create and update body fields and length limits, is not covered by the sources below. Support for paging on Webex Calling Dedicated Instance is not covered by the sources below. Bulk CSV management of paging groups is not covered by the sources below. ## Sources [^1]: On a 9800 or 8875 phone, a top-priority page may end a Webex meeting in progress, and a lower-priority page notification appears after the meeting ends. Source: [Make and answer a paging call](https://help.webex.com/en-us/article/lv5lcc/Make-and-answer-a-paging-call), Webex meeting and paging. Checked 2026-09-25. [^2]: On a 9800 or 8875 phone, the user starts a page by dialing the paging group number and hears one short beep, and any active call ends automatically. Source: [Make and answer a paging call](https://help.webex.com/en-us/article/lv5lcc/Make-and-answer-a-paging-call), Make a paging call. Checked 2026-09-25. [^3]: On 9800 and 8875 phones, an incoming page's effect on an active call depends on priority: top priority puts the active call on hold, default mixes the page into the call audio, lower plays an alert tone and waits for the call to end or be held, and lowest ignores the page (disputed). Source: [Make and answer a paging call](https://help.webex.com/en-us/article/lv5lcc/Make-and-answer-a-paging-call), Answer a paging call, priority list. Checked 2026-09-25. [^4]: Cisco's end-user article on making and answering paging calls covers the Cisco Desk Phone 9800 Series and Cisco Video Phone 8875 when they are registered to Webex Calling or Cisco BroadWorks. Source: [Make and answer a paging call](https://help.webex.com/en-us/article/lv5lcc/Make-and-answer-a-paging-call), Article applicability header. Checked 2026-09-25. [^5]: On a 9800 or 8875 phone, an incoming page is answered automatically with the microphone muted, preceded by three short beeps, and the user cannot decline it. Source: [Make and answer a paging call](https://help.webex.com/en-us/article/lv5lcc/Make-and-answer-a-paging-call), Answer a paging call. Checked 2026-09-25. [^6]: Algo endpoints on Webex Calling need firmware 3.4.4 or later, TLS signalling and SRTP (AES_CM_128_HMAC_SHA1_80); first-generation models without TLS/SRTP are not supported. Source: [Cisco Webex Registration Guide](https://docs.algosolutions.com/docs/cisco-webex-registeration-guide), Technical requirements and limitations sections. Checked 2026-09-25. [^7]: Algo SIP endpoints, including the 8301 SIP Paging Adapter, register to Webex Calling as customer-managed third-party SIP devices added in Control Hub. Source: [Cisco Webex Registration Guide](https://docs.algosolutions.com/docs/cisco-webex-registeration-guide), Registration method and tested models sections. Checked 2026-09-25. [^8]: For customers in the Asia-Pacific region, the paging group's Calling Line field is populated automatically with the username and cannot be changed. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, Before you begin. Checked 2026-09-25. [^9]: The Read the List of Paging Groups API supports limit and offset paging and filters by location ID and by name. Source: [Features: Paging Group - Read the List of Paging Groups](https://developer.webex.com/docs/api/v1/features-paging-group/read-the-list-of-paging-groups), Read the List of Paging Groups, query parameters. Checked 2026-09-25. [^10]: The Read the List of Paging Groups API requires a full, read-only or location administrator token with the spark-admin:telephony_config_read scope. Source: [Features: Paging Group - Read the List of Paging Groups](https://developer.webex.com/docs/api/v1/features-paging-group/read-the-list-of-paging-groups), Read the List of Paging Groups, description. Checked 2026-09-25. [^11]: On a Cisco ATA 192, paging works only if the page is answered manually within 1 to 2 seconds or an external device with auto-answer is connected to the ATA. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, Before you begin. Checked 2026-09-25. [^12]: A caller who pages a group that has no registered devices hears a busy signal. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, Before you begin. Checked 2026-09-25. [^13]: Control Hub offers an option to show the paging group name as the caller ID instead of a custom name. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, step 6. Checked 2026-09-25. [^14]: A custom caller ID name for pages from the group can be up to 128 Unicode characters. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, step 6. Checked 2026-09-25. [^15]: Native Webex Calling group paging (up to 75 targets, no on-premises server) covers more endpoints than UCM's free InformaCast Basic Paging (up to 50 phones), but it does not replace InformaCast Advanced Notification for overhead, text or unlimited-endpoint alerting (inferred). Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, introductory paragraph; compared with cisco-cucm-featconfig-15-paging, Paging Overview. Checked 2026-09-25. [^16]: When creating a paging group in Control Hub, the admin can optionally copy the selected targets into the originator list. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, procedure step following paging targets. Checked 2026-09-25. [^17]: CyberData lists SIP paging adapters (for example model 011233 SIP Paging Adapter) in its Cisco Webex Calling IP-to-analog adapter and paging server collection. Source: [Cisco Webex Calling IP to Analog Adapters & Paging Servers](https://www.cyberdata.net/collections/cisco-webex-calling-ip-to-analog-adapters), Product listing. Checked 2026-09-25. [^18]: The paging group's Dial by Name field accepts ASCII characters. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, Dial by Name step. Checked 2026-09-25. [^19]: A paging target with Do Not Disturb enabled is not paged. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Paging group feature notes. Checked 2026-09-25. [^20]: A user can be assigned as both a paging target and a paging originator in the same paging group. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Paging group feature notes. Checked 2026-09-25. [^21]: An existing paging group's general settings, phone number, paging targets and paging originators can be edited in Control Hub. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Edit a paging group in Control Hub. Checked 2026-09-25. [^22]: The originator ends the page by hanging up. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Paging group feature notes. Checked 2026-09-25. [^23]: The extension for a paging group must be available and not already assigned. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, phone number and extension step. Checked 2026-09-25. [^24]: The Cisco Paging Server end-of-sale listing includes a notice dated 2017-03-02 ending sale of Cisco Singlewire InformaCast Advanced perpetual licenses; the listing has no notice for Cisco Paging Server as a whole. Source: [Cisco Paging Server - End-of-Life and End-of-Sale Notices](https://www.cisco.com/c/en/us/products/unified-communications/paging-server/eos-eol-notice-listing.html), Notice list, InformaCast Advanced Perpetual Licenses entry. Checked 2026-09-25. [^25]: A paging group has a language setting chosen from a drop-down during creation. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, language step. Checked 2026-09-25. [^26]: The Webex Calling features-by-license table marks paging as available for all four license columns: Professional User, Professional Workspace, Standard and Workspace. 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), Features table, Paging row. Checked 2026-09-25. [^27]: Group Paging is listed as a location feature included at no extra cost. 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), Location features section. Checked 2026-09-25. [^28]: A paging group is created under a specific location and given a name and a phone number or extension; a location can hold more than one paging group. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, procedure (location, name, number steps). Checked 2026-09-25. [^29]: A Webex Calling paging group lets a user place a one-way group page to up to 75 targets by dialing the number or extension assigned to the paging group. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, introductory paragraph. Checked 2026-09-25. [^30]: Control Hub device settings for 9800 and 8875 phones include a Multicast Paging Group section (under Phone) that supports up to 10 multicast paging groups per phone. Source: [Configure 9800 Series and 8875 Phones on Control Hub](https://help.webex.com/en-us/article/n72q8yeb/Configure-9800-Series-and-8875-Phones-on-Control-Hub), Device parameters, Phone > Multicast Paging Group. Checked 2026-09-25. [^31]: The 9800 and 8875 multicast paging script can specify G711a, G711u, G722 or G729. Source: [Configure 9800 Series and 8875 Phones on Control Hub](https://help.webex.com/en-us/article/n72q8yeb/Configure-9800-Series-and-8875-Phones-on-Control-Hub), Device parameters, Phone > Multicast Paging Group, paging script syntax. Checked 2026-09-25. [^32]: Multicast paging configured in phone device settings is likely a separate mechanism from the Control Hub paging group feature: it is set per phone with a multicast address and port, while a paging group is a cloud feature with a number and a target list (inferred). Source: [Configure 9800 Series and 8875 Phones on Control Hub](https://help.webex.com/en-us/article/n72q8yeb/Configure-9800-Series-and-8875-Phones-on-Control-Hub), Device parameters, Phone > Multicast Paging Group; compared with cisco-help-jqejtd-configure-paging-group, Paging group feature notes. Checked 2026-09-25. [^33]: Multicast paging device settings can be set at organization, location or device level, and the lower level takes precedence. Source: [Configure 9800 Series and 8875 Phones on Control Hub](https://help.webex.com/en-us/article/n72q8yeb/Configure-9800-Series-and-8875-Phones-on-Control-Hub), Device settings hierarchy section. Checked 2026-09-25. [^34]: In multicast paging, phones in the same group share a multicast number that complies with the line's dial plan, and a listen setting of yes makes a phone receive pages for that group. Source: [Configure 9800 Series and 8875 Phones on Control Hub](https://help.webex.com/en-us/article/n72q8yeb/Configure-9800-Series-and-8875-Phones-on-Control-Hub), Device parameters, Phone > Multicast Paging Group, num and listen. Checked 2026-09-25. [^35]: Each multicast paging group on a 9800 or 8875 needs its own port, which must be an even number from 1000 to 65534, plus a multicast address from the paging server. Source: [Configure 9800 Series and 8875 Phones on Control Hub](https://help.webex.com/en-us/article/n72q8yeb/Configure-9800-Series-and-8875-Phones-on-Control-Hub), Device parameters, Phone > Multicast Paging Group, multicast address and port. Checked 2026-09-25. [^36]: Multicast paging priority on 9800 and 8875 phones runs from 0 to 3: 0 holds the active call, 1 mixes page and call audio, 2 plays an alert tone and needs the call ended or held, and 3 ignores the page during a call. Source: [Configure 9800 Series and 8875 Phones on Control Hub](https://help.webex.com/en-us/article/n72q8yeb/Configure-9800-Series-and-8875-Phones-on-Control-Hub), Device parameters, Phone > Multicast Paging Group, priority. Checked 2026-09-25. [^37]: Cisco's article on migrating devices and features from Unified CM to Webex Calling does not list paging among the migrated features, so paging configuration probably has to be rebuilt by hand (inferred). Source: [Migrate devices and features from Unified CM to Webex Calling](https://help.webex.com/en-us/article/d2lemv/Migration-of-Devices-and-Features-From-Cisco-unified-Communications-Manager(UCM)-to-Webex-Calling-Multi-Tenant), Overview feature list and CSV file specifications. Checked 2026-09-25. [^38]: A paging group must have more than one member. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, Before you begin. Checked 2026-09-25. [^39]: Paging groups are created and edited in Control Hub under Services > Calling > Features, on the Paging Group card. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, steps 1-3; Edit a paging group in Control Hub, steps 1-3. Checked 2026-09-25. [^40]: If a paging target has Single Number Reach (Office Anywhere), Call Forwarding or Simultaneous Ring enabled, the page is not sent to those configured destinations. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Paging group feature notes. Checked 2026-09-25. [^41]: If a paging target does not answer a page, the page is not forwarded to that target's voicemail. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Paging group feature notes. Checked 2026-09-25. [^42]: The paging group admin article says that if a paging target is already on a call, the page is not automatically answered (disputed). Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Paging group feature notes. Checked 2026-09-25. [^43]: A group page is one-way audio: the originator has a talk path to the targets, and targets have no talk path to the originator or to each other during the page. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Paging group feature notes. Checked 2026-09-25. [^44]: Paging group originators are chosen by searching for and adding users, workspaces or virtual lines. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, procedure step for paging originators (step 11). Checked 2026-09-25. [^45]: Paging groups work only on a member's primary devices and do not work on shared devices (shared line appearances). Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Paging group feature notes. Checked 2026-09-25. [^46]: Once the page is set up to the targets, the originator hears a 'Paging System Ready' announcement telling them to begin speaking. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Paging group feature notes. Checked 2026-09-25. [^47]: Each paging group member must have at least one registered device. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, Before you begin. Checked 2026-09-25. [^48]: The Group Paging service calls all assigned targets simultaneously. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Paging group feature notes. Checked 2026-09-25. [^49]: Singlewire announced InformaCast integration with Webex Calling on 2021-10-19, extending paging and notification to IP speakers, overhead paging systems, desktops, digital signage and mobile phones. Source: [Singlewire Launches InformaCast Integration with Webex Calling](https://www.singlewire.com/news/webex-calling), Press release body. Checked 2026-09-25. [^50]: Paging groups work only with Cisco IP Phone 6800, 7800, 8800, 8875 and 9800 Series and Cisco ATA 191 and ATA 192. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, Before you begin. Checked 2026-09-25. [^51]: Paging group targets can be users, workspaces or virtual lines. Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, procedure step for paging targets. Checked 2026-09-25. [^52]: Because Cisco's paging group article lists only Cisco phones and ATA 191 and 192 as supported, putting a third-party SIP paging adapter such as an Algo 8301 into a paging group as a target is probably not a Cisco-documented configuration; the safer design is to call the adapter directly, for example by its extension (inferred). Source: [Configure a paging group in Control Hub](https://help.webex.com/en-us/article/jqejtd/Configure-a-paging-group-in-Control-Hub), Configure a paging group in Control Hub, Before you begin (supported devices); compared with algo-docs-webex-registration-guide. Checked 2026-09-25. [^53]: InformaCast Advanced Notification is a separately licensed emergency notification and paging product that sends text and audio to an unlimited number of Cisco IP phones plus overhead paging systems and other devices. Source: [Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Paging](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/cucm_b_feature-configuration-guide-for-15/cucm_mp_p1a97f9e_00_paging-12-0.html), Paging Overview, InformaCast Advanced Notification. Checked 2026-09-25. [^54]: InformaCast Basic Paging with Unified CM provides live phone-to-phone audio paging to single Cisco IP phones or to groups of up to 50 phones at once. Source: [Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Paging](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/cucm_b_feature-configuration-guide-for-15/cucm_mp_p1a97f9e_00_paging-12-0.html), Paging Overview, InformaCast Basic Paging. Checked 2026-09-25. [^55]: InformaCast Basic Paging is provided at no charge to Unified CM and Business Edition customers. Source: [Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Paging](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/cucm_b_feature-configuration-guide-for-15/cucm_mp_p1a97f9e_00_paging-12-0.html), Paging Overview, InformaCast Basic Paging. Checked 2026-09-25. [^56]: Unified CM provides paging by integrating with Cisco Paging Server, delivered as the InformaCast Virtual Appliance. Source: [Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Paging](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/cucm_b_feature-configuration-guide-for-15/cucm_mp_p1a97f9e_00_paging-12-0.html), Paging Overview. Checked 2026-09-25. [^57]: The Unified CM integration with Cisco Paging Server uses SIP, SNMP, AXL and CTI, and requires G.711 regions and a multicast-enabled network. Source: [Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Paging](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/cucm_b_feature-configuration-guide-for-15/cucm_mp_p1a97f9e_00_paging-12-0.html), Paging prerequisites and configuration task flow. Checked 2026-09-25. [^58]: A virtual line can be assigned as a member of a paging group. Source: [Multi line support in Webex Calling using virtual lines](https://help.webex.com/en-us/article/nthc9kbb/Multi-line-support-in-Webex-Calling-using-virtual-lines), Assign virtual lines to calling features. Checked 2026-09-25.