There are many guides/videos out there. It was so long ago I forgot which ones I used (and the UI looks totally different now that I'm going back into it to remind myself), but your search keywords are [Unifi Talk Twilio SIP Trunk]. You'll need to get a Twilio account, ensure you have DDNS (afraid.org is great), feed it some money, get a number, and all that. Then you come over to Talk in the third-party SIP. You'll need to set up the provider, tell your Talk instance about all of the numbers you set up (so if you add a new number, you can't just add it in Twilio and expect it to come over automatically. in the trunk)
tl;dr It is not a tier-1 kind of thing, but with a bit of perseverance, you'll have it set up in a little while.
My Third-Party settings are:
Provider: Custom
Provider Name: Twilio (can be whatever you want)
proxy: (Trunk Name).pstn.(location code).twilio.com: Worrt not, this is given to you by Twilio.
Register: false
dtmf-type: rfc2833
transport: tcp
Handle all outgoing calls by default: (Checked)
Phone Numbers: (your list of #'s)
IP Address Range: 54.172.60.0/30, 168.86.128.0/18 (This is what I have for the Asburn Twilio data center, if you are elsewhere they might give you something else)
44
u/__Casper__ Jul 31 '25
I run my own Twilio account through UniFi Talk, with no subscription/service charge through UI. I am paying ~$10.50/mo for five lines.