Asterisk res_pjsip endpoints have an allow_overlap option enabling RFC 3578 overlap dialling support, documented with default yes.
Checked 2026-10-02
- Vendor
- Sangoma
- Product
- Asterisk
- Subsystem
- res_pjsip endpoint
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Latest_API as of 2026-10-02
- Checked
- 2026-10-02
Sources
- res_pjsip - Asterisk Documentation — Sangoma / Asterisk project · tier 3 vendor-maintained repositories · Configuration object 'endpoint', option allow_overlap
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting SIP 404 Not Found and 484 Address Incomplete call failures: source note sip-404-484-troubleshooting-asterisk-allow-overlap. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-404-484-troubleshooting-asterisk-allow-overlap
BibTeX
@misc{warmtransfer-claim-sip-404-484-troubleshooting-asterisk-allow-overlap,
title = {Troubleshooting SIP 404 Not Found and 484 Address Incomplete call failures: source note sip-404-484-troubleshooting-asterisk-allow-overlap},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-404-484-troubleshooting-asterisk-allow-overlap},
note = {Source note sip-404-484-troubleshooting-asterisk-allow-overlap, checked 2026-10-02}
}