Twilio says that with Symmetric RTP disabled it sends RTP to the destination negotiated in the SDP, and that this setting is considered more secure and is therefore recommended.

Checked 2026-09-24

When Symmetric RTP is disabled, Twilio will send RTP to the destination negotiated in the SDP. This setting is considered to be more secure and therefore recommended.
Vendor
Twilio
Product
Elastic SIP Trunking
Subsystem
symmetric RTP
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-24
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). One-way and no-way audio diagnosis: source note one-way-audio-twilio-symmetric-rtp-off-recommended. WarmTransfer. https://warmtransfer.net/knowledge/claims/one-way-audio-twilio-symmetric-rtp-off-recommended

BibTeX

@misc{warmtransfer-claim-one-way-audio-twilio-symmetric-rtp-off-recommended,
  title  = {One-way and no-way audio diagnosis: source note one-way-audio-twilio-symmetric-rtp-off-recommended},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/one-way-audio-twilio-symmetric-rtp-off-recommended},
  note   = {Source note one-way-audio-twilio-symmetric-rtp-off-recommended, checked 2026-09-24}
}

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