Twilio's Voice SDK network requirements list media as UDP on ports 10,000 to 60,000 toward 168.86.128.0/18 and signaling as TCP on port 443.
Checked 2026-09-30
- Vendor
- Twilio
- Product
- Twilio Voice SDKs
- Subsystem
- firewall configuration
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-30
- Checked
- 2026-09-30
Sources
- Voice SDKs Network Connectivity Requirements — Twilio · tier 2 current vendor documentation · Sections 'Voice Media Server connectivity requirements' and 'Signalling connectivity requirements'
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting browser softphone audio in cloud contact centers: source note browser-softphone-audio-troubleshooting-twilio-media-ports. WarmTransfer. https://warmtransfer.net/knowledge/claims/browser-softphone-audio-troubleshooting-twilio-media-ports
BibTeX
@misc{warmtransfer-claim-browser-softphone-audio-troubleshooting-twilio-media-ports,
title = {Troubleshooting browser softphone audio in cloud contact centers: source note browser-softphone-audio-troubleshooting-twilio-media-ports},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/browser-softphone-audio-troubleshooting-twilio-media-ports},
note = {Source note browser-softphone-audio-troubleshooting-twilio-media-ports, checked 2026-09-30}
}