SIP Trunk Configuration Guide

How to configure SIP registered trunk with Yeastar S-Series VoIP PBX

Configure a SIP Trunk

1. Create an Account with the SIP trunk provider.
To start with, you need to have an account from your SIP trunk provider.

2. Add a SIP Trunk in S-Series VoIP PBX
After you get the SIP trunk account, you need to add a SIP trunk in Yeastar S-Series VoIP PBX.
Go to Settings > PBX > Trunks, click Add.

1 Add Trunk - Yeastar S-Series

3. Configure the trunk
If your SIP trunk provider has been certified by Yeastar officially, you can select “your country” from the drop-down list and select the “ITSP name”. All the parameters are embedded except the account registration information. If your SIP trunk provider is not a Yeastar-certified one, then please choose General and fill in all the parameters needed.

2. Choose ITSP - Yeastar S-Series Register
  • Name: give this SIP trunk a name to help you identify it.
  • Protocol: SIP.
  • Trunk Type: Register Trunk.
  • Transport: UDP, TCP, TLS, or DNS-NAPTR. The default transport is already embedded.
  • Username: your Account username.
  • Authentication Name: the same as the username.
  • From User: the same as the user name.
  • Password: your Account password.
  • Caller ID Number: your Account DID number.

4. Check the Trunk Status
Click Save and Apply. Go to PBX Monitor to check if the SIP trunk is connected successfully as the screenshot below shows.

3. Check PBX Status - Yeastar S-Series Register

Configure the Outbound Route with SIP Trunk

To make outbound calls via the newly created SIP trunk, you need to configure an outbound route for the trunk.
1. Create an Outbound Route
Go to Settings > PBX > Call Control > Outbound Routes, click Add.

4. Add Outbound - Yeastar S-Series

2. Configure the Outbound Route
The system compares the number with the pattern that you have defined in your route 1. If it matches, it will initiate the call using the selected trunks. If it does not, it will compare the number with the pattern you have defined in route 2 and so on. The outbound route which is in a higher position will be matched firstly.
You can adjust the outbound route sequence by clicking these buttons

5. Outbound Configuration - Yeastar S-Series Register
  • Route Name: give this outbound route a name to help you identify it.
  • Dial Patterns: set the dial patterns. As the settings below, to make calls via the SIP trunk, you need to precede the number to be dialed with the prefix 8.
  • Dial Pattern: 8.
  • Strip: 1
  • Member Extensions: select the extensions that are allowed to make calls through the outbound route.
  • Member Trunks: select the SIP trunk.

3. Click Save and Apply
Now you can make outbound calls through the SIP trunk. As the dial patterns configured above, you need to dial “8” before the destination number.
For example, to call the number “01234567”, you need to dial “801234567” on your phone.

Configure the Inbound Route with SIP Trunk

To specify how calls from the SIP trunk should be routed, you need to configure an inbound route for the SIP trunk.
1. Create an Inbound Route
Go to Settings > PBX > Call Control > Inbound Routes, click Add.

6. Add Inbound - Yeastar S-Series

2. Configure the Inbound Route

7. Inbound Configuration - Yeastar S-Series Register
  • Name: give this inbound route a name to help you identify it.
  • Member Trunks: choose the SIP trunk.
  • Destination: select the destination where the incoming calls will be routed.

3. Click Save and Apply
When you call in the SIP trunk, the call will be routed to the destination configured on the inbound route.