The Webex Contact Center PSTN signaling table lists Delayed Offer as supported, Early Offer and Early Media as not supported, and a 20 ms packetization time in SDP.

Checked 2026-09-30

Vendor
Cisco
Product
Webex Contact Center
Subsystem
Signaling
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-30
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Setting up bring-your-own PSTN for Webex Contact Center: source note wxcc-byo-pstn-setup-offer-and-ptime. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxcc-byo-pstn-setup-offer-and-ptime

BibTeX

@misc{warmtransfer-claim-wxcc-byo-pstn-setup-offer-and-ptime,
  title  = {Setting up bring-your-own PSTN for Webex Contact Center: source note wxcc-byo-pstn-setup-offer-and-ptime},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/wxcc-byo-pstn-setup-offer-and-ptime},
  note   = {Source note wxcc-byo-pstn-setup-offer-and-ptime, checked 2026-09-30}
}

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