Tutorials: SIP Trunk Setup - UCM6300 Series
Required access: Voxtelesys Portal, Grandstream PBX
Estimated time to complete tutorial: 5-10 min
Configuring your Voxtelesys SIP trunk with the Grandstream UCM6300 Series PBX is easy, follow the simple steps below to register your SIP trunk, once registered you can create your inbound and outbound rules to send and receive calls!
Last Updated: 6/16/2025
Navigate to your Grandstream system
Under Extension/Trunk on the left click on "VoIP Trunks"
Click "Add SIP Trunk"
Click the drop down for type and select "Register SIP Trunk"
Click the "Provider Name" field and name it Voxtelesys
Click the "Host Name" field and Enter your SIP Domain from the Voxtelesys Portal
Click the "Trunk Registration Number" field.
Enter your DID from Voxtelesys
Click the "Password" field. Enter the Registration password from the Voxtelesys Portal.
Click the "AuthID" field and enter the Domain Username from the Voxtelesys Portal
Click "Save"
Click the Box with the pencil to edit the trunk.
Click on the "Advanced Settings" button. Click "Advanced Settings"
Edit the codec to match to the right:
That's it, your Voxtelesys SIP trunk is now setup with your Grandstream UCM6300 series PBX!
We recommend you check out some other guides that will help continue configuring your Grandstream PBX:
