All TTNC SIP Trunks use one of two different types of authentication. While some of the setup steps are the same for both types, there are large parts in which the process differs.

There are specific help pages for each authentication type:

• IP Based Authentication SIP Trunks
• User Based Authentication SIP Trunks

Adding a SIP Trunk to your account

You can buy a SIP Trunk through the store in myTTNC. Just follow these simple steps:

1. Log in by either clicking on the login button in the header or by going to www.myttnc.co.uk
2. Click on the myTTNC store tab in the left hand menu.

3. Click on the Add Bolt On Services tab in the left hand menu.

4. Click Buy on 'SIP Trunk' from the list.

5. Select the number of channels you require, a minimum of 2 are required. Click on the Confirm button to add it to the basket.

6. Proceed to Checkout to make the purchase. The SIP Trunk will be available to set up immediately.

---

Creating your SIP Trunk configuration

You can create the configuration details for your SIP Trunks in myTTNC. There are two types of authentication, which have different information to set up, however the first part follows the same steps:

1. Log in by either clicking on the login button in the header or by going to www.myttnc.co.uk
2. Click on the VoIP tab in the left hand menu.

3. Click on the SIP Trunks tab in the left hand menu.

4. Click on the green Create new Endpoint button.

5. Select IP Based Authentication or User Based Authentication depending on your preferred method and click Create Endpoint.

Editing & Deleting a SIP Trunk

You can edit SIP Trunks through myTTNC, however the steps are slightly different depending on whether the SIP Trunk uses IP Based or User Based Authentication. Click on the links for specific instructions.

---

Forwarding numbers to your SIP Trunk

The process to forward a number to your SIP Trunk depends on the authentication method. User Based Authentication is very similar to stardard call forwarding to a mobile or landline, IP Based Authentication is more complex. Click on the links below for specific instructions.

Forwarding using IP Based Authentication
Forwarding using User Based Authentication

---

Important information about your VoIP service

Refer to the settings below if you're looking to set up your SIP Trunks on an IP phone or PBX.