The Asterisk sample configuration matches trunk-provider calls by IP address rather than From user because the From user may differ on every call.
Checked 2026-09-24
For calls from a trunking provider, the From user may be different every time, so we want to match against IP address instead of From user.
- Vendor
- Sangoma
- Product
- Asterisk
- Subsystem
- res_pjsip
- Deployment
- self-hosted
- Region
- not restricted
- Release range
- master branch as of 2026-09-24
- Checked
- 2026-09-24
Sources
- configs/samples/pjsip.conf.sample — Asterisk Project (GitHub asterisk/asterisk) · tier 3 vendor-maintained repositories · ENDPOINT CONFIGURED AS A TRUNK, OUTBOUND AUTHENTICATION (identify comment)
Cite this note
APA
WarmTransfer. (2026, September 24). Setting up an Asterisk PBX with Twilio Elastic SIP Trunking: source note asterisk-twilio-pbx-setup-identify-trunk-by-ip. WarmTransfer. https://warmtransfer.net/knowledge/claims/asterisk-twilio-pbx-setup-identify-trunk-by-ip
BibTeX
@misc{warmtransfer-claim-asterisk-twilio-pbx-setup-identify-trunk-by-ip,
title = {Setting up an Asterisk PBX with Twilio Elastic SIP Trunking: source note asterisk-twilio-pbx-setup-identify-trunk-by-ip},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/asterisk-twilio-pbx-setup-identify-trunk-by-ip},
note = {Source note asterisk-twilio-pbx-setup-identify-trunk-by-ip, checked 2026-09-24}
}