Calls arriving at Webex Contact Center over PSTN interconnect must use G.711 u-law or A-law and RFC 2833 DTMF.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Webex Contact Center
- Subsystem
- PSTN media and signaling
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Set up voice channels for Webex Contact Center — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · PSTN Media and Signaling Requirements
Cite this note
APA
WarmTransfer. (2026, September 24). Voice POP bridge telephony lifecycle in Webex Contact Center: source note webex-cc-vpop-lifecycle-pstn-codec-dtmf. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-cc-vpop-lifecycle-pstn-codec-dtmf
BibTeX
@misc{warmtransfer-claim-webex-cc-vpop-lifecycle-pstn-codec-dtmf,
title = {Voice POP bridge telephony lifecycle in Webex Contact Center: source note webex-cc-vpop-lifecycle-pstn-codec-dtmf},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/webex-cc-vpop-lifecycle-pstn-codec-dtmf},
note = {Source note webex-cc-vpop-lifecycle-pstn-codec-dtmf, checked 2026-09-24}
}