Webex Calling Dedicated Instance applicability

See also

Sources

1. 1
   Cisco states that the Webex Calling data centre location information does not apply to Webex Calling Dedicated Instance.

   Data Center locations for Webex Calling · closing note after Table 2 · Checked 2026-09-16
2. 2
   Cisco describes Dedicated Instance as an entitlement within Webex Calling that provides a Cisco Unified Communications Manager based stack of applications in a private cloud dedicated to a single customer.

   Cisco Preferred Architecture for Webex Calling — Design Overview · Introduction, Webex Calling Solution Overview, Dedicated Instance paragraph · Checked 2026-09-16
3. 3
   The Dedicated Instance add-on bundles Cisco Unified Communications Manager, optional Cisco Unified IM and Presence, Cisco Unity Connection, Cisco Expressway, Cisco Emergency Responder in the Americas region only, and optionally Cisco Session Management Edition.

   Introduction to Dedicated Instance · Overview bullet list · Checked 2026-09-04
4. 4
   Dedicated Instance is a single-tenant cloud calling option built on the Cisco Unified Communications Manager architecture and integrated with Webex Calling for centralised administration.

   Introduction to Dedicated Instance · Overview · Checked 2026-09-04
5. 5
   Calling features are not harmonised between Dedicated Instance and Webex Calling multi-tenant; for example a multi-tenant Webex Calling user cannot be a member of a hunt group hosted on Dedicated Instance.

   Introduction to Dedicated Instance · Basic Inter-Op · Checked 2026-09-04
6. 6
   A PSTN connection and a main number on the Webex Calling multi-tenant side are required for the interoperation SIP trunk between multi-tenant and Dedicated Instance to route calls successfully.

   Dedicated Instance for Webex Calling — base configuration · Cisco configured components, Location row · Checked 2026-09-04
7. 7
   Cisco positions Dedicated Instance as a low-disruption migration path from on-premises Unified CM, preserving the same features, user experience and integration options and requiring no retraining for existing Unified CM customers.

   Introduction to Dedicated Instance · Simple migration path, No Disruptions · Checked 2026-09-04
8. 8
   Cisco states there are no new Dedicated Instance deployments in the EMEA region, so new customers in that region must choose a different data centre region.

   Activate Dedicated Instance · Region selection guidance · Checked 2026-09-04
9. 9
   A fully deployed Dedicated Instance cluster supports up to 8 call processing servers or approximately 50000 devices on Unified CM version 14 and above.

   Introduction to Dedicated Instance · Dedicated Instance sizing · Checked 2026-09-04
10. 10
    On the evidence the corpus holds, the choice between Dedicated Instance and Webex Calling multi-tenant turns on whether an organisation wants to keep its existing Unified CM feature set and administration model or to re-platform onto Webex Calling's native feature set, and Cisco publishes no explicit decision tree and no named migration tool that distinguishes the 2 paths.inferred

    Introduction to Dedicated Instance · synthesis across the three Dedicated Instance articles · Checked 2026-09-16
11. 11
    Cisco states that the devices and features migration steps also apply to Dedicated Instance, not only to Webex Calling multi-tenant.

    Migrate devices and features from Unified CM to Webex Calling · note preceding the Migration of data section · Checked 2026-09-16
12. 12
    Call quality drop, trunk status change and trunk concurrent call limit alerts are not triggered on Dedicated Instance based trunks.

    Notifications in Control Hub · Add a call quality drop alert, Add a trunk status change alert and Add a trunk concurrent call limit alert · Checked 2026-09-05
13. 13
    A separate certificate expiry alert for Dedicated Instance is sent 67 days before expiration and then every 12 days until the certificate is renewed.

    Notifications in Control Hub · Certificate expiry alert, Dedicated Instance section · Checked 2026-09-05
14. 14
    The Webex Calling data centre location article explicitly excludes Webex Calling Dedicated Instance from its scope.

    Data Center locations for Webex Calling · closing note · Checked 2026-09-05
15. 15
    The Dedicated Instance add-on for Webex Calling includes 6 Cisco applications: Unified Communications Manager, Unified IM and Presence as an option, Unity Connection, Expressway, multiple cluster Emergency Responder in the Americas region only, and Session Management Edition as an option.

    Introduction to Dedicated Instance · Overview, the Dedicated Instance add-on for Webex Calling includes list · Checked 2026-09-16
16. 16
    Cisco takes a nightly backup of every Dedicated Instance UC application, keeps the latest 3 backups in the data centre password protected, uses them only to restore an application as part of disaster recovery, and states that the customer will not have access to these backups and that this is not a change backout strategy.

    Introduction to Dedicated Instance · Backup of UC applications section · Checked 2026-09-16
17. 17
    The number of call processing nodes deployed in a Dedicated Instance cluster is determined by the Knowledge Worker and Common Area device counts captured in the First Time Setup Wizard during service activation, and Cisco states that the call processing service must not be activated on any node other than the specific nodes Cisco has activated in the cluster.

    Introduction to Dedicated Instance · Dedicated Instance sizing, Unified Communication application sizing, final paragraphs · Checked 2026-09-16
18. 18
    A fully deployed Dedicated Instance Unified CM cluster supports up to 8 call processing servers or approximately 50000 devices with version 14 and above, a full-size cluster holds 50000 configured devices, and a maximum of 160000 end users may be configured or synchronised over LDAP into the cluster whether or not they are active on it.

    Introduction to Dedicated Instance · Dedicated Instance sizing, Unified Communication application sizing · Checked 2026-09-16
19. 19
    Cisco states that Dedicated Instance supports the same voice and video endpoints as the associated Unified Communications Manager release, that it also supports older Cisco endpoints and existing integrations, and that it can be trunked to third-party private branch exchanges.

    Introduction to Dedicated Instance · Overview, and Simple migration path Extended ROI and No Disruptions paragraphs · Checked 2026-09-16
20. 20
    Dedicated Instance customers are entitled to Mobile and Remote Access licences for 100 percent of their Knowledge Worker count and to business-to-business calling for 5 percent, and the Dedicated Instance operations team deploys Mobile and Remote Access for 20 percent of the Knowledge Worker licence at activation, leaving the customer to expand to the entitled 100 percent based on consumption.

    Introduction to Dedicated Instance · Expressways section · Checked 2026-09-16
21. 21
    Cisco states that the calling features are not harmonized between Dedicated Instance and Webex Calling, that customers who split users across the 2 platforms will experience different features, and gives as its own example that Webex Calling users cannot be part of a hunt group on Dedicated Instance.

    Introduction to Dedicated Instance · Simple migration path, Basic Inter-Op paragraph · Checked 2026-09-16
22. 22
    The first Unified CM cluster in a Dedicated Instance region is activated within 48 hours of service activation and any subsequent clusters within 5 business days.

    Introduction to Dedicated Instance · Multiple clusters section · Checked 2026-09-16
23. 23
    Dedicated Instance supports the same level of localisation as on-premises Unified Communications Manager, with phone and gateway tones in 82 countries, a self-care portal in 50 languages and clients in more than 30 languages, and is orderable as an add-on to the Webex Calling Flex Plan 3.0 through partners in specific countries.

    Introduction to Dedicated Instance · Solution availability section · Checked 2026-09-16
24. 24
    Cisco states that Dedicated Instance customers have access to the Unified Communications Manager security features for endpoints and UC applications including encrypted media, secure Survivable Remote Site Telephony and secure over-the-top registration using Mobile and Remote Access, and to Survivable Remote Site Telephony for site connectivity when network links go down together with Emergency Responder and Nomadic E911.

    Introduction to Dedicated Instance · Simple migration path, Uncompromised Security paragraph · Checked 2026-09-16
25. 25
    A Dedicated Instance customer becomes eligible for a Cisco Session Management Edition deployment when they have 3 clusters deployed, a single Session Management Edition cluster can span regions, and an SME deployment requires a Business Unit approval process initiated by the account manager.

    Introduction to Dedicated Instance · Cisco Session Manager Edition (SME) section · Checked 2026-09-16
26. 26
    Cisco Unity Connection is installed as part of Dedicated Instance service activation and sized from the Knowledge Worker count given per region, and Cisco requires a support case for an Office 365 integration requirement because that integration affects the sizing of the application.

    Introduction to Dedicated Instance · Cisco Unity Connection section · Checked 2026-09-16
27. 27
    Cisco states that the Professional license for a Workspace is not applicable for Webex Calling Dedicated Instance.

    Features available by license type for Webex Calling · Professional license (Workspace) paragraph · Checked 2026-09-16
28. 28
    Cisco states that Control Hub analytics keeps historical data for calls involving Webex Calling desk phones, the desktop and mobile Webex App, the Webex Calling App and Cisco Room Series devices, and that data is not captured for calls based in Cisco Unified Communications Manager, Cisco Dedicated Instance or Cisco Webex Cloud-Connected UC.

    Analytics for Your Cloud Collaboration Portfolio · Analytics article, Webex Calling section, retention paragraph · Checked 2026-09-16

Documents

Cite this page

WarmTransfer. (2026, September 16). Webex Calling Dedicated Instance applicability. WarmTransfer. https://warmtransfer.net/knowledge/webex-calling-dedicated-instance

@misc{warmtransfer-webex-calling-dedicated-instance,
  title  = {Webex Calling Dedicated Instance applicability},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/webex-calling-dedicated-instance},
  note   = {Verified 2026-09-16}
}