Telnyx Integration
A step-by-step guide to connect your Telnyx phone numbers via SIP trunkingThis guide walks you through connecting your Telnyx phone numbers using SIP trunking. You will create an FQDN connection in Telnyx, configure outbound authentication, assign your numbers, and import them into Famulor.
Why FQDN? The connection type must be FQDN - not Credentials or IP Address. Credential connections require SIP REGISTER for inbound calls, which our platform does not send. FQDN connections route inbound calls directly to our SIP server and authenticate outbound calls via credentials.
Pricing snapshot: Telnyx publishes public starting prices for numbers and SIP trunking, while country-specific details are provided through the live pricing sheet.
- Inbound / number rental: local numbers from
$1/month; inbound local calls from$0.0035/min - Outbound / calling: international outbound calls from
$0.005/min - Germany / Switzerland / United Kingdom / United States: exact live country-specific rates are available in Telnyx pricing sheets rather than directly on the summary page
- Official pricing: Numbers pricing and SIP trunking pricing
Step 1: Create SIP Connection
- Log in to the Telnyx Mission Control Portal
- Navigate to Real-Time Communications -> Voice -> SIP Trunking
- Click Create SIP Connection
-
Name: Choose a name (for example,
my-company SIP trunk) - Type: Select FQDN
-
Click Create - this opens the setup wizard

Step 2: Authentication and Routing
The wizard takes you to the Authentication and routing step. Here you add the FQDN for inbound call routing and set up outbound credentials.Add FQDN
-
Click ”+ Add FQDN” and enter:
- DNS Record Type:
A - FQDN:
{famulorsipadress}.sip.livekit.cloud - Port:
5060
- DNS Record Type:
-
Click Save

Inbound Calls Routing
Scroll down to the Inbound calls routing section on the same page:-
SIP subdomain: Enter a name (for example,
yourcompany) - this createsyourcompany.sip.telnyx.com - Receive SIP Subdomain calls: Set to From Anyone
-
Primary FQDN: Select
{famulorsipadress}.sip.livekit.cloudfrom the dropdown
Outbound Authentication
Scroll down further to the Outbound calls authentication section:- Method: Select Credentials
-
Set a username and password - save these, you need them when importing the number into Famulor

Step 3: Configuration
The wizard shows the Configuration page with connection details, webhooks, and advanced settings. You do not need to change anything here - just verify that the Type shows FQDN Connection and click Next.
Step 4: Inbound and Outbound
The wizard goes through the Inbound and Outbound steps. Since you already configured these in Step 2, verify the settings and click Next on each page. On the Outbound page, make sure:- Outbound voice profile: Select your profile (or “Default”)
- Localization country: Select your country
-
Channel limit: Set to
10or higher
If you do not have an Outbound Voice Profile, go to Voice -> Settings -> Outbound Voice Profiles -> Create Profile. Make sure to enable the countries you want to call under Allowed Destinations.
Step 5: Assign Numbers
The last step of the wizard is the Numbers page:- Click Assign numbers
- Select the phone number(s) you want to use
Step 6: Enable Geographic Permissions
- Go to Voice -> Settings -> Outbound Voice Profiles
-
Click Edit

- Click your profile -> Allowed Destinations
-
Enable the countries/regions you need to call

Step 7: Import Number to Famulor
- Open Phone Numbers directly in your Famulor dashboard. If it takes you to the login page, log in first - it automatically redirects you to Phone Numbers.
-
Click “Integrate SIP trunk” (top-right corner of the page)

-
Fill in your phone number and SIP credentials:
-
Enter outbound settings:

-
Select Authorization type: IP Address and add the Telnyx IP addresses for your region:
- US:
192.76.120.10 - Europe:
185.246.41.140and185.246.41.141 - Australia:
103.115.244.145and103.115.244.146

- US:
You can add all IP addresses regardless of region - only the relevant ones are used.
-
Select the country where your SIP trunk is located.

Step 8: Verify Setup
To test your Telnyx number, assign it to AI assistants. Inbound and outbound require separate assistants:Test Inbound
- Go to AI Assistants -> create a new assistant (or use an existing one)
- Set assistant type to Receive phone calls
- Assign your Telnyx phone number to the assistant
- Call your Telnyx number from any phone - the AI assistant should answer
Test Outbound
- Create a second assistant with type Make phone calls
- Assign the same Telnyx phone number to this assistant
- Click Speak to assistant -> Phone call - Famulor calls your personal phone using the Telnyx number
Security Requirements
Your SIP credentials need to be secure:- Username: Your provider-supplied username
- Password must have:
- 12 or more characters
- Numbers
- Upper and lowercase letters
- Special characters recommended
Common Issues
Dialed number is not included in whitelisted countries
Dialed number is not included in whitelisted countries
Go to Voice -> Settings -> Outbound Voice Profiles -> your profile -> Allowed Destinations and enable the destination country you are trying to call.
Inbound calls not working or 'number is incorrect'
Inbound calls not working or 'number is incorrect'
- Make sure the connection type is FQDN (not Credentials or IP Address)
- Verify the FQDN is set to
{famulorsipadress}.sip.livekit.cloudon port5060 - Check that the phone number is assigned to the FQDN connection (not another connection)
Outbound calls not connecting
Outbound calls not connecting
- Verify the SIP address is
sip.telnyx.com(not your SIP subdomain) - Check that credentials match between Telnyx and Famulor
- Make sure an Outbound Voice Profile is attached to the connection
- Verify the Localization country is set correctly
Why can’t I use Credentials connection type?
Why can’t I use Credentials connection type?
Credential connections require SIP REGISTER for inbound calls. Famulor uses direct SIP routing (no registration), so FQDN connection type is required. FQDN still supports credential-based authentication for outbound calls.
Need help setting up? Our support team specializes in SIP onboarding and will guide you through the full setup for your specific phone system.

