Source note · Unified CM to Webex Calling Dedicated Instance
On cutover day, devices are moved by changing DHCP option 150 on all affected subnets and resetting the phones on the on-premises Unified CM.
Checked 2026-10-01
Cutover of devices done via change of Option 150 on all related subnets
- Vendor
- Cisco
- Product
- Webex Calling Dedicated Instance
- Subsystem
- cutover
- Deployment
- dedicated-instance
- Region
- not restricted
- Release range
- current as of 2026-10-01
- Checked
- 2026-10-01
Sources
- Best practices in preparation and migration process to Webex Calling - Dedicated Instance — Cisco Webex · tier 2 current vendor documentation · Cutover day / go-live, device migration
Cite this note
APA
WarmTransfer. (2026, October 1). Unified CM to Webex Calling Dedicated Instance: source note cucm-to-webex-calling-dedicated-instance-bp-cutover-opt150. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-webex-calling-dedicated-instance-bp-cutover-opt150
BibTeX
@misc{warmtransfer-claim-cucm-to-webex-calling-dedicated-instance-bp-cutover-opt150,
title = {Unified CM to Webex Calling Dedicated Instance: source note cucm-to-webex-calling-dedicated-instance-bp-cutover-opt150},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-to-webex-calling-dedicated-instance-bp-cutover-opt150},
note = {Source note cucm-to-webex-calling-dedicated-instance-bp-cutover-opt150, checked 2026-10-01}
}