When the trunk's Symmetric RTP option is enabled, Twilio sends RTP to the address the remote stream actually arrives from rather than the one negotiated in SDP.
Checked 2026-09-24
- Vendor
- Twilio
- Product
- Elastic SIP Trunking
- Subsystem
- media
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Elastic SIP Trunking — Twilio · tier 2 current vendor documentation · General settings > Symmetric RTP
Cite this note
APA
WarmTransfer. (2026, September 24). Setting up an Asterisk PBX with Twilio Elastic SIP Trunking: source note asterisk-twilio-pbx-setup-symmetric-rtp-option. WarmTransfer. https://warmtransfer.net/knowledge/claims/asterisk-twilio-pbx-setup-symmetric-rtp-option
BibTeX
@misc{warmtransfer-claim-asterisk-twilio-pbx-setup-symmetric-rtp-option,
title = {Setting up an Asterisk PBX with Twilio Elastic SIP Trunking: source note asterisk-twilio-pbx-setup-symmetric-rtp-option},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/asterisk-twilio-pbx-setup-symmetric-rtp-option},
note = {Source note asterisk-twilio-pbx-setup-symmetric-rtp-option, checked 2026-09-24}
}