A Twilio SIP IP access control list entry accepts only an IPv4 address, optionally with a CIDR prefix length; by default the entire address is matched.
Checked 2026-09-24
IPv4 only supported today.
- Vendor
- Twilio
- Product
- Programmable Voice SIP API
- Subsystem
- IP access control lists
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- SIP IpAddress resource — Twilio · tier 2 current vendor documentation · Parameters > ip_address; cidr_prefix_length
Cite this note
APA
WarmTransfer. (2026, September 24). Setting up an Asterisk PBX with Twilio Elastic SIP Trunking: source note asterisk-twilio-pbx-setup-acl-ipv4-only. WarmTransfer. https://warmtransfer.net/knowledge/claims/asterisk-twilio-pbx-setup-acl-ipv4-only
BibTeX
@misc{warmtransfer-claim-asterisk-twilio-pbx-setup-acl-ipv4-only,
title = {Setting up an Asterisk PBX with Twilio Elastic SIP Trunking: source note asterisk-twilio-pbx-setup-acl-ipv4-only},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/asterisk-twilio-pbx-setup-acl-ipv4-only},
note = {Source note asterisk-twilio-pbx-setup-acl-ipv4-only, checked 2026-09-24}
}