Cisco lists +E.164 dialing, extension dialing, abbreviated inter-site dialing, forced on-net dialing and callback from the missed calls directory as dialing behaviours that must work from Unified CM to Webex Calling during coexistence.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- coexistence
- Deployment
- multi-tenant, on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Design to migrate from Unified CM to Webex Calling — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · Coexistence dial plan; Unified CM to Webex Calling requirements list
Cite this note
APA
WarmTransfer. (2026, September 25). Migrating a Unified CM dial plan to Webex Calling or Teams: source note dial-plan-migration-coexistence-requirements. WarmTransfer. https://warmtransfer.net/knowledge/claims/dial-plan-migration-coexistence-requirements
BibTeX
@misc{warmtransfer-claim-dial-plan-migration-coexistence-requirements,
title = {Migrating a Unified CM dial plan to Webex Calling or Teams: source note dial-plan-migration-coexistence-requirements},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/dial-plan-migration-coexistence-requirements},
note = {Source note dial-plan-migration-coexistence-requirements, checked 2026-09-25}
}