In the LGW guide, the SRV record wxtocucm.io points LGW-to-Unified CM Webex traffic at Unified CM port 5065, and the SRV record pstntocucm.io points PSTN traffic at Unified CM port 5060.

Checked 2026-09-24

ip host _sip._udp.wxtocucm.io srv 0 1 5065 ucmpub.mydomain.com
Vendor
Cisco
Product
Webex Calling Local Gateway (IOS XE)
Subsystem
DNS SRV targets
Deployment
hybrid
Region
not restricted
Release range
current as of 2026-09-24
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Unified CM SIP trunks and security profiles: source note cucm-sip-trunks-lgw-srv-records. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-sip-trunks-lgw-srv-records

BibTeX

@misc{warmtransfer-claim-cucm-sip-trunks-lgw-srv-records,
  title  = {Unified CM SIP trunks and security profiles: source note cucm-sip-trunks-lgw-srv-records},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-sip-trunks-lgw-srv-records},
  note   = {Source note cucm-sip-trunks-lgw-srv-records, checked 2026-09-24}
}

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