Security Guide for Cisco Unified Communications Manager, Release 12.5(1) - SIP Trunk Security Profile Setup

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/security/12_5_1/cucm_b_security-guide-1251/cucm_b_security-guide-1251_chapter_011000.html

Published

2025-02-24

Updated

unknown

Accessed

2026-10-02

HTTP status

200

License

Cisco documentation terms; no-redistribution; short excerpts and locators only

Source notes citing this source

• In a Cisco Unified CM 12.5(1) SIP trunk security profile with Device Security Mode Non Secure, the incoming transport type is TCP+UDP; with Authenticated or Encrypted it is TLS. in context
• Cisco's Unified CM 12.5(1) security guide says to use UDP as the SIP trunk outgoing transport only when the far end does not support TCP, and otherwise to use TCP as the default. in context

Cite this source record

APA

WarmTransfer. (2025, February 24). Security Guide for Cisco Unified Communications Manager, Release 12.5(1) - SIP Trunk Security Profile Setup. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cucm-1251-sec-sip-trunk-profile

BibTeX

@misc{warmtransfer-cisco-cucm-1251-sec-sip-trunk-profile,
  title  = {Security Guide for Cisco Unified Communications Manager, Release 12.5(1) - SIP Trunk Security Profile Setup},
  author = {{WarmTransfer}},
  year   = {2025},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cucm-1251-sec-sip-trunk-profile},
  note   = {Cisco Systems, accessed 2026-10-02}
}