Troubleshoot MPP Phone in WxC for Provision and Registration

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/support/docs/unified-communications/webex-calling/221021-troubleshoot-mpp-phone-in-wxc-for-provis.html

Published

2024-04-18

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco website terms of use; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• 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. in context
• In Cisco's TAC-documented provisioning flow, an MPP phone first calls home to activate.cisco.com over HTTPS for activation. in context
• After activation the phone receives a profile rule pointing to cisco.sipflash.com, from which it downloads its configuration. in context
• TAC's MPP troubleshooting procedure collects Problem Report Tool (PRT) logs from the phone's web interface. in context
• A successful Webex Calling MPP registration includes an initial REGISTER answered by 401 Unauthorized, followed by an authenticated REGISTER with digest credentials answered by 200 OK. in context
• Before registering, the phone resolves a _sips._tcp SRV record for its Webex Calling access SBC domain; a DNS resolution failure is a documented cause of registration failure. in context
• The TAC technote lists TLS port 8934 for MPP phone signalling to the Webex Calling access SBCs. in context

Cite this source record

APA

WarmTransfer. (2024, April 18). Troubleshoot MPP Phone in WxC for Provision and Registration. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-technote-221021-mpp-provision-registration

BibTeX

@misc{warmtransfer-cisco-technote-221021-mpp-provision-registration,
  title  = {Troubleshoot MPP Phone in WxC for Provision and Registration},
  author = {{WarmTransfer}},
  year   = {2024},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-technote-221021-mpp-provision-registration},
  note   = {Cisco Systems, accessed 2026-09-25}
}