Unifi Talk SIP Trunk Setup
Written by Mira Beltre
Updated at December 11th, 2025
Table of Contents
Scope
Intended Audience: All Users
This doc will go over how to setup a Unifi Talk SIP trunk
Requirments
- Access to UniFI Admin Panel
Connect a SIP Trunk
- Log into the UniFI admin panel.
- Navigate to UniFI Talk
- Select Settings > System
- Click Add Third-Party SIP Provider
- Create an OIT SIP Trunk with the following details:
- Provider Name: OIT
- Proxy: <outbound proxy>
- For the outbound proxy, replace <outboundproxy> with the FQDN for your primary core (reach out to support if unsure):
- ATL: sbc.ucaasnetwork.com
- IAD: sbc-iad.ucaasnetwork.com
- PHX: sbc-phx.ucaasnetwork.com
- Realm: <sip trunk's name>
- from-domain: <domain name>
- Click Apply
NOTE: Please note that the numbers in the Portal's DID Inventory should be pointed to the correct sip trunk connection which is the trunk name. Please see this doc for best practices.