SIP Trunk List
| Column | Description |
|---|---|
| Name & Numbers | Trunk name with count of linked phone numbers |
| Termination URI | SIP endpoint for outbound calls |
| Authentication | SIP auth username (if configured) |
| IP Restrictions | Allowed IP addresses for inbound calls |
| Actions | Copy ID, Edit, Delete |
Creating a SIP Trunk
Click Create SIP Trunk. The dialog is split into Inbound and Outbound tabs.Inbound
Use the inbound tab to copy your itellicoAI inbound URI and restrict which source IPs are allowed to send calls into the trunk. Your itellicoAI inbound SIP URI is:Outbound
Use the outbound tab to configure:| Setting | Description |
|---|---|
| Name | Descriptive name for this trunk (e.g., “Main Carrier”) |
| Provider Domain / Termination URI | Your carrier’s SIP endpoint for outbound calls |
| SIP Auth Username | Authentication username provided by your carrier |
| Password | Stored through the shared Secrets credential flow instead of being shown as plain text in the dialog |
Static SIP IP Ranges
itellicoAI’s SIP traffic egresses from a fixed set of static IP ranges, which your carrier or firewall can whitelist. These ranges are shared infrastructure and not exclusive to itellicoAI, so when your carrier supports SIP credentials, the allowlist should complement them rather than replace them.Available IP Ranges
143.223.88.0/21161.115.160.0/19
When This Is Relevant
Use the static IP ranges when you:- Need to whitelist SIP traffic in firewalls or SBCs
- Operate in restrictive or security-critical networks
- Require a stable, predictable SIP connection
Important
Make sure both UDP and TCP are open on these IP ranges for SIP signalling and RTP media.Importing Phone Numbers
Once you have a SIP trunk, import your existing numbers:Enter number details
- Phone Number — International E.164 format (e.g., +43 720 123456)
- Label — Optional name
- Forwarded From — If you use number forwarding, the customer-facing number that forwards to this AI number. Shown on your public Trust Center. Leave blank if not using forwarding.
- SIP Trunk — Select the trunk you created
- Routing — Choose a fallback inbound agent now, then manage detailed routing from Phone Numbers
Save
The platform imports and links the number to your SIP trunk. Configure your carrier to forward calls to itellicoAI’s SIP endpoint. For fallback agents, routing rules, and schedules, use Phone Numbers.
Next Steps
Phone Numbers
Manage all your numbers in one place
Schedules
Configure routing schedules for your numbers
Agent Editor
Configure the agent that answers calls