Call Manager Fallback Configurations

You can enable Call Manager Fallback commands, using the ios-voice:sip-ua configuration mode. The ios-voice:call-manager-fallback mode is a part of Cisco-IOS-XE-voice module. The following operations are allowed in the ios-voice:call-manager-fallback mode:

Operations X-path
get, get-config, edit-config /native/ios-voice:call-manager-fallback

Prerequisites for Call Manager Fallback Configuration

You can configure any of the call manager fallback commands only if you enable the call-manager-fallback command.

Select Call Manager Fallback Configuration Mode

To enter into the ios-voice:call-manager-fallback configuration mode, follow the x-path provided in the following table:

Object X-path
ios-voice:call-manager-fallback /native/ios-voice:call-manager-fallback

Newly Added YANG Models in Release 17.14.1a

The following YANG model is supported from 17.14.1a:

  • transport-tcp-tls

Basic Call Manager Fallback Configurations

The ios-voice:call-manager-fallback configuration mode allows you to configure Unified SRST for Cisco Call Manager fallback using the following commands:

Prerequisites

You must configure fallback using the ios-voice:transport-tcp-tls under ios-voice:transport-tcp-tls-version configuration mode. The ios-voice:transport-tcp-tls-version is configured under ios-voice:call-manager-fallback configuration mode.

To enter into the transport-tcp-tls configuration mode and configure various TLS versions over TCP for user agents, follow the X-path provided in the following table:

Object X-path
transport-tcp-tls /native/ios-voice:call-manager-fallback/ios-voice:transport-tcp-tls-version/ios-voice:transport-tcp-tls
Object Description X-path Value Prerequisites Remarks
transport-tcp-tls To configure default TLS over TCP for SCCP User Agent. /native/ios-voice:call-manager-fallback/ios-voice:transport-tcp-tls N/A N/A N/A
version 1.0 To set TLS Version 1.0. /native/ios-voice:call-manager-fallback/ios-voice:transport-tcp-tls-version/ios-voice:transport-tcp-tls/ios-voice:v1.0 v1.0 N/A N/A
version 1.1 To set TLS Version 1.1. /native/ios-voice:call-manager-fallback/ios-voice:transport-tcp-tls-version/ios-voice:transport-tcp-tls/ios-voice:v1.1 v1.1 N/A N/A
version 1.2 To set TLS Version 1.2. /native/ios-voice:call-manager-fallback/ios-voice:transport-tcp-tls-version/ios-voice:transport-tcp-tls/ios-voice:v1.2 v1.2 N/A N/A
version 1.2 sha2 To limit cipher suite choices to SHA2 exclusively in TLS Version 1.2. /native/ios-voice:call-manager-fallback/ios-voice:transport-tcp-tls-version/ios-voice:transport-tcp-tls/ios-voice:v1.2/ios-voice:sha2 sha2 N/A N/A
version 1.3 To set TLS Version 1.3. /native/ios-voice:call-manager-fallback/ios-voice:transport-tcp-tls-version/ios-voice:transport-tcp-tls/ios-voice:v1.3 v1.3 N/A N/A
version 1.3 sha2 To limit cipher suite choices to SHA2 exclusively in TLS Version 1.3. /native/ios-voice:call-manager-fallback/ios-voice:transport-tcp-tls-version/ios-voice:transport-tcp-tls/ios-voice:v1.3/ios-voice:sha2 sha2 N/A N/A