Source note · Calls that drop after about 30 seconds
Sources disagree on how quickly a UAS tears down a call after a missing ACK. The OpenSIPS blog says 5 to 10 seconds, but 64*T1 with T1 = 500 ms gives about 32 seconds.
disputed · Checked 2026-09-25
- Vendor
- OpenSIPS
- Product
- SIP
- Subsystem
- troubleshooting
- Deployment
- any
- Region
- not restricted
- Release range
- implementation-dependent
- Status
- disputed
- Checked
- 2026-09-25
Sources
- Troubleshooting missing ACK in SIP — OpenSIPS Project · tier 4 archived vendor documentation · Opening section describing the disconnect after missing ACK
Cite this note
APA
WarmTransfer. (2026, September 25). Calls that drop after about 30 seconds: source note sip-calls-drop-30-seconds-bye-timing-dispute. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-calls-drop-30-seconds-bye-timing-dispute
BibTeX
@misc{warmtransfer-claim-sip-calls-drop-30-seconds-bye-timing-dispute,
title = {Calls that drop after about 30 seconds: source note sip-calls-drop-30-seconds-bye-timing-dispute},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-calls-drop-30-seconds-bye-timing-dispute},
note = {Source note sip-calls-drop-30-seconds-bye-timing-dispute, checked 2026-09-25}
}