Source note · Webex Calling device onboarding and activation codes
If the DHCP server hands the phone a TFTP server address (options such as 66, 150, 159 or 160), the MPP phone tries to provision from that TFTP server instead of the Webex Calling servers and fails to provision.
Checked 2026-09-25
A TFTP IP Address is configured in the DHCP server. This cause that the phone tried to provision to this TFTP server instead of the Webex Calling servers.
- Vendor
- Cisco
- Product
- Webex Calling with MPP phones
- Subsystem
- provisioning failures
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- as documented 2024-04-18
- Checked
- 2026-09-25
Sources
- Troubleshoot MPP Phone in WxC for Provision and Registration — Cisco Systems · tier 2 current vendor documentation · troubleshooting section on provisioning issues (DHCP/TFTP scenario)
Cite this note
APA
WarmTransfer. (2026, September 25). Webex Calling device onboarding and activation codes: source note webex-calling-device-onboarding-dhcp-tftp-option. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-calling-device-onboarding-dhcp-tftp-option
BibTeX
@misc{warmtransfer-claim-webex-calling-device-onboarding-dhcp-tftp-option,
title = {Webex Calling device onboarding and activation codes: source note webex-calling-device-onboarding-dhcp-tftp-option},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/webex-calling-device-onboarding-dhcp-tftp-option},
note = {Source note webex-calling-device-onboarding-dhcp-tftp-option, checked 2026-09-25}
}