Source note · SD-WAN considerations for voice
The SD-WAN configuration-group UC Voice Profile includes an SRST feature for SIP, so that if the WAN goes down or is degraded, SIP IP phones in a branch can register to the local gateway and keep PSTN breakout.
Checked 2026-09-24
if the WAN goes down or is degraded, SIP IP phones in a branch site can register to the local gateway
- Vendor
- Cisco
- Product
- Cisco Catalyst SD-WAN Manager configuration groups
- Subsystem
- SRST
- Deployment
- sd-wan-controller-mode
- Region
- not restricted
- Release range
- 17.13.1a / 20.13.1 and later
- Checked
- 2026-09-24
Sources
- Cisco Catalyst SD-WAN Configuration Groups, Cisco IOS XE Catalyst SD-WAN Release 17.x - Cisco Unified Communications Voice Profile — Cisco Systems · tier 2 current vendor documentation · SRST feature description
Cite this note
APA
WarmTransfer. (2026, September 24). SD-WAN considerations for voice: source note sdwan-voice-cg-srst. WarmTransfer. https://warmtransfer.net/knowledge/claims/sdwan-voice-cg-srst
BibTeX
@misc{warmtransfer-claim-sdwan-voice-cg-srst,
title = {SD-WAN considerations for voice: source note sdwan-voice-cg-srst},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sdwan-voice-cg-srst},
note = {Source note sdwan-voice-cg-srst, checked 2026-09-24}
}