Source note · CUCM CallManager SDL trace files
When an inbound SIP message exceeds SIP Max Incoming Message Size, the CallManager trace shows SIPTcp - Ignoring large message ... Only allow up to <n> bytes. Resetting connection.
Checked 2026-09-22
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- SIP signalling in SDL trace
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 8.6 and later
- Checked
- 2026-09-22
Sources
- Troubleshoot Most Common Issues for Business to Business Calls Through Expressway — Cisco Systems · tier 2 current vendor documentation · Error //SIP/SIPTcp/wait_SdlReadRsp: Ignoring large message
Cite this note
APA
WarmTransfer. (2026, September 22). CUCM CallManager SDL trace files: source note cucm-sdl-trace-files-sip-large-message. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-sdl-trace-files-sip-large-message
BibTeX
@misc{warmtransfer-claim-cucm-sdl-trace-files-sip-large-message,
title = {CUCM CallManager SDL trace files: source note cucm-sdl-trace-files-sip-large-message},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-sdl-trace-files-sip-large-message},
note = {Source note cucm-sdl-trace-files-sip-large-message, checked 2026-09-22}
}