Cisco Catalyst SD-WAN Solution Integrations Guide, Releases 26.x and Later

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Cisco Catalyst SD-WAN Solution Integrations Guide, Releases 26.x and Later

Cisco unified communications voice services

Updated: April 24, 2026

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Describes Cisco Unified Communications voice services that enable configuration of feature templates and voice policies for supported routers.

Cisco Unified Communications voice services are router capabilities that

  • enable configuration of feature templates and voice policies for Foreign Exchange Office (FXO), Foreign Exchange Station (FXS), FXS/Direct Inward Dialing (DID) interfaces, and Primary Rate Interface (PRI) Integrated Services Digital Network (ISDN)

  • support DSPFarm feature template to enable Cisco IP-based media services, and

  • allow routers to process calls for various endpoints including voice ports for analog and digital interfaces, Plain Old Telephone Service (POTS) dial peers, Session Initiation Protocol (SIP) dial peers, and phone profiles in Cisco Unified Survivable Remote Site Telephony (SRST) mode.

System requirements

To configure UC voice services for Cisco Unified Communications, Cisco SD-WAN Manager must run Cisco SD-WAN Release 20.3.1 or later.

Starting with Cisco IOS XE Catalyst SD-WAN Release 17.3.1a, you can also configure parameters for Primary Rate Interface (PRI) Integrated Services Digital Network (ISDN).

Note

Starting with Cisco IOS XE Catalyst SD-WAN Release 17.13.1a, you can also configure and enable UC voice services using the Workflow library or configuration groups. For more information, see Cisco Unified Communications Voice Profile.

For detailed information about commands to configure and maintain Cisco IOS voice applications, see the Cisco IOS Master Command List.