Source note · SIP session timers
Cisco TAC states CUCM sends a default Session-Expires of 1800 seconds, which can be raised to a maximum of 86400.
Checked 2026-09-25
Session expires CUCM sends default value is 1800, but can be increased to a maximum of 86400.
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- SIP trunk session timer
- Deployment
- on-premises
- Region
- not restricted
- Release range
- as documented 2018-10-18
- Checked
- 2026-09-25
Sources
- Troubleshoot Session Refresh on CUBE — Cisco · tier 2 current vendor documentation · Section 'Example Call Flows'
Cite this note
APA
WarmTransfer. (2026, September 25). SIP session timers: source note sip-session-timers-cucm-se-1800-max-86400. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-session-timers-cucm-se-1800-max-86400
BibTeX
@misc{warmtransfer-claim-sip-session-timers-cucm-se-1800-max-86400,
title = {SIP session timers: source note sip-session-timers-cucm-se-1800-max-86400},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-session-timers-cucm-se-1800-max-86400},
note = {Source note sip-session-timers-cucm-se-1800-max-86400, checked 2026-09-25}
}