Phones & Devices
UniFi Talk SIP Trunk Setup
The VoIP Help Page Team·1 min read·Last updated: March 14, 2026
### Scope
This doc will go over how to setup a Unifi Talk SIP trunk
Requirments
- Access to UniFI Admin Panel
- 1Log into the UniFI admin panel.
- 2Navigate to UniFI Talk
- 3Select Settings > System
- 4Click Add Third-Party SIP Provider
- 5Create an OIT SIP Trunk with the following details:
- 6Provider Name: OIT
- 7Proxy: <outbound proxy>
- 8For the outbound proxy, replace <outboundproxy> with the FQDN for your primary core (reach out to support if unsure):
- 1ATL: sbc.ucaasnetwork.com
- 2IAD: sbc-iad.ucaasnetwork.com
- 3PHX: sbc-phx.ucaasnetwork.com
- 1
- 9Realm: <sip trunk's name>
- 10from-domain: <domain name>
- 11Click 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.
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