Cisco lists porting challenges including coordinating port orders precisely, potential delays, and provider limits such as a cap on concurrent port requests.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- number porting
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Design to migrate from Unified CM to Webex Calling — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Design to migrate > PSTN
Cite this note
APA
WarmTransfer. (2026, September 24). Unified CM and Webex Calling coexistence during a migration: source note cucm-webex-calling-coexistence-porting-challenges. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-webex-calling-coexistence-porting-challenges
BibTeX
@misc{warmtransfer-claim-cucm-webex-calling-coexistence-porting-challenges,
title = {Unified CM and Webex Calling coexistence during a migration: source note cucm-webex-calling-coexistence-porting-challenges},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-webex-calling-coexistence-porting-challenges},
note = {Source note cucm-webex-calling-coexistence-porting-challenges, checked 2026-09-24}
}