Connect Telnyx
Use Telnyx numbers with VINSI AI agents — either numbers you buy inside VINSI, or numbers in your own Telnyx account.
Created: September 18, 2026
Updated: September 18, 2026
Overview
VINSI's own phone numbers run on the Telnyx network, so there are two situations:
| Your numbers are… | What to do |
|---|---|
| Bought in VINSI | Nothing to connect. They're already on Telnyx and fully set up. |
| In your own Telnyx account | Connect them with a SIP trunk, below. They stay in your account and on your Telnyx bill. |
Numbers Bought in VINSI
On the Phone Numbers page, click Add Phone Number, search by area code, and pick a number. Each number is $3/month, billed separately. VINSI sets up incoming calls, outgoing calls and call recording for you. Then assign it to an agent — see Setting Up Phone Numbers.
Numbers hosted by VINSI are signed with the highest STIR/SHAKEN verification level, which helps keep outgoing calls from being labelled “Spam Likely”.
Your Own Telnyx Account
You'll create a SIP connection in Telnyx that sends incoming calls to VINSI and lets VINSI place outgoing calls with a username and password. Before you start, open VINSI's Phone Numbers page and click Add SIP Trunk: the Configure SIP Trunk window shows your Origination SIP URI under Inbound Call Setup.
Telnyx renames its portal menus from time to time. If a label below doesn't match, look for the setting described next to it — the values you need don't change.
1. Set Up the Telnyx Connection
- In the Telnyx Portal, go to Voice → SIP Trunking and create a new connection named, for example, VINSI AI.
- Inbound: set the connection to deliver calls to the host in VINSI's Origination SIP URI (the part after
sip:), on port 5060. - Outbound: turn on credential authentication and set a username and password. Save the password somewhere safe.
- Create or choose an Outbound Voice Profile that allows the countries you'll call, and assign the connection to it. Telnyx won't place outgoing calls on a connection without one.
Authenticate with a username and password, not by IP address. VINSI's outgoing calls don't always come from the same IP address, so IP-only authentication will reject some calls.
2. Point Your Number at It
In Numbers → My Numbers, open your number and set its connection to the one you just created.
3. Connect It in VINSI
In VINSI's Configure SIP Trunk window, fill in:
| Field | What to enter |
|---|---|
| Trunk Name | Any name, e.g. Telnyx – Main line. |
| Phone Number | Your Telnyx number in full format, e.g. +18005551234. |
| SIP Termination URI | sip:sip.telnyx.com |
| SIP Username | The username from step 1. |
| SIP Password | The password from step 1. |
Click Configure Trunk, then assign the number to an agent — see Setting Up Phone Numbers.
4. Test
- Incoming: call the number from your mobile. The AI agent should answer.
- Outgoing: open the agent and click Call Me to have the AI ring your phone.
- Transfer: ask the AI to transfer you, and check the call reaches the right person.
Each test call appears in Call Logs with its recording and transcript.
Troubleshooting
| Problem | Check |
|---|---|
| Incoming calls don't reach the AI | The number is assigned to the new connection in Telnyx; the connection sends inbound calls to VINSI's origination host; the number is assigned to an agent in VINSI. |
| The AI can't call out | The connection has an Outbound Voice Profile; credential authentication is on; the username and password in VINSI match. |
| Calls to some countries fail | Add those destinations to the Outbound Voice Profile's allowed countries. |
| Please enter a valid E.164 format phone number | Enter the number as +1 followed by 10 digits. The form takes US and Canada numbers. |