Source note · SD-WAN considerations for voice
The trunk between a Local Gateway and the Webex cloud uses SIP over TLS for signalling and SRTP for media.
Checked 2026-09-24
The media between the Local Gateway and Webex Calling uses SRTP.
- Vendor
- Cisco
- Product
- Webex Calling Local Gateway
- Subsystem
- trunk security
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Configure Local Gateway on Cisco IOS XE for Webex Calling — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Overview of Local Gateway trunk security
Cite this note
APA
WarmTransfer. (2026, September 24). SD-WAN considerations for voice: source note sdwan-voice-lgw-tls-srtp. WarmTransfer. https://warmtransfer.net/knowledge/claims/sdwan-voice-lgw-tls-srtp
BibTeX
@misc{warmtransfer-claim-sdwan-voice-lgw-tls-srtp,
title = {SD-WAN considerations for voice: source note sdwan-voice-lgw-tls-srtp},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sdwan-voice-lgw-tls-srtp},
note = {Source note sdwan-voice-lgw-tls-srtp, checked 2026-09-24}
}