SRVCC (Single Radio Voice Call Continuity) provides the ability to transition a voice call from the VoIP/IMS packet domain (LTE) to the legacy circuit domain. Variations of SRVCC are being standardized to support both GSM/UMTS and CDMA 1x circuit domains. For an operator with a legacy cellular network who wishes to deploy IMS/VoIP-based voice services in conjunction with the rollout of an LTE network, SRVCC offers VoIP subscribers with coverage over a much larger area than would typically be available during the rollout of a new network.
Srvcc parameter to enable/disable EATF functionality. Signaling - Srvcc is also available for configuring SRVCC functionality.
To View and Edit Srvcc
On SBC main screen, go to All > Address Context > Zone > Srvcc. The Srvcc window is displayed.
The following fields are displayed:
|Enable or disable EATF functionality for a zone.|
Make the required changes and click Save at the right hand bottom of the panel to save the changes made.