In the Cisco transition deployment guide, agent devices continue to register to the on-premises Unified CM for call processing both during the hybrid phase and after the final transition.
Checked 2026-09-22
During the hybrid phase (phase 1) as well as after the final transition (phase 2), the agent devices continue to register to on-premises Unified CM for call processing.
- Vendor
- Cisco
- Product
- Webex Contact Center
- Subsystem
- migration-architecture
- Deployment
- hybrid
- Region
- not restricted
- Release range
- guide dated 2021-09
- Checked
- 2026-09-22
Sources
- Contact Center: Transitioning from Unified Contact Center Express to Webex Contact Center Deployment Guide — Cisco Systems, Inc. · tier 2 current vendor documentation · section "Overview of this Transition Deployment Guide"
Cite this note
APA
WarmTransfer. (2026, September 22). Telephony during a UCCX to Webex Contact Center migration: source note uccx-to-webex-cc-telephony-coexistence-phones-stay-ucm. WarmTransfer. https://warmtransfer.net/knowledge/claims/uccx-to-webex-cc-telephony-coexistence-phones-stay-ucm
BibTeX
@misc{warmtransfer-claim-uccx-to-webex-cc-telephony-coexistence-phones-stay-ucm,
title = {Telephony during a UCCX to Webex Contact Center migration: source note uccx-to-webex-cc-telephony-coexistence-phones-stay-ucm},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/uccx-to-webex-cc-telephony-coexistence-phones-stay-ucm},
note = {Source note uccx-to-webex-cc-telephony-coexistence-phones-stay-ucm, checked 2026-09-22}
}