Source note · Troubleshooting Cisco IP phone registration
Expressway's Maintenance > Tools > Network utilities > DNS lookup checks _collab-edge._tls and _cisco-uds._tcp SRV records; run from Expressway-C it shows the internal view and from Expressway-E the DMZ view.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Expressway
- Subsystem
- MRA DNS
- Deployment
- on-premises
- Region
- not restricted
- Release range
- X15.2
- Checked
- 2026-09-24
Sources
- Mobile and Remote Access Through Cisco Expressway Deployment Guide (X15.2) - MRA Troubleshooting — Cisco Systems · tier 2 current vendor documentation · MRA Troubleshooting > Checking DNS records
Cite this note
APA
WarmTransfer. (2026, September 24). Troubleshooting Cisco IP phone registration: source note cisco-phone-registration-troubleshooting-mra-dns-tool. WarmTransfer. https://warmtransfer.net/knowledge/claims/cisco-phone-registration-troubleshooting-mra-dns-tool
BibTeX
@misc{warmtransfer-claim-cisco-phone-registration-troubleshooting-mra-dns-tool,
title = {Troubleshooting Cisco IP phone registration: source note cisco-phone-registration-troubleshooting-mra-dns-tool},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cisco-phone-registration-troubleshooting-mra-dns-tool},
note = {Source note cisco-phone-registration-troubleshooting-mra-dns-tool, checked 2026-09-24}
}