A PSTN connection and a main number on the Webex Calling multi-tenant side are required for the interoperation SIP trunk between multi-tenant and Dedicated Instance to route calls successfully.

fact · verified 2026-09-04

A PSTN connection and a main number are required for successful call routing between MT and DI.
Vendor
Cisco
Product
Webex Calling Dedicated Instance
Subsystem
interoperation
Deployment
dedicated-instance
Region
not restricted
Release range
Unified CM 14 and later
Status
fact
Confidence
0.90
Verified
2026-09-04

Sources

Cite this claim

APA

WarmTransfer. (2026, September 4). Webex Calling Dedicated Instance applicability: claim wxc-di-interop-requires-main-number. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxc-di-interop-requires-main-number

BibTeX

@misc{warmtransfer-claim-wxc-di-interop-requires-main-number,
  title  = {Webex Calling Dedicated Instance applicability: claim wxc-di-interop-requires-main-number},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/wxc-di-interop-requires-main-number},
  note   = {Claim wxc-di-interop-requires-main-number, verified 2026-09-04}
}

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