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Tutorials: SIP Trunk Setup
Learn which sections you need to configure to get Voxtelesys and NEC connected!
Setting up the NEC SL2100 is a bit more work than some other PBX systems out there but in the guide below we will show which sections you need to configure to get Voxtelesys and NEC connected!
Table of Contents:
Last Updated: 8/4/2025
Enter the following:
- 01 - Domain Name: "voxtelesys.net"
- 02 - Host Name: "xxxxxx-xxxx.sip"
- This is the first portion of your Voxtelesys domain: "xxxxxx-xxxx.sip.voxtelesys.net"
- 03 - Transport Protcol: "UDP"
- 04 - Domain Assignment: "Domain Name"
Configure the following:
- 01 - Outbound Default Proxy: "Enabled"
- 05 - Register Mode: "Manual"
- 07 - Register Port: "5060"
- 11 - Register Domain Name: "xxxxxx-xxxx.sip.voxtelesys.net"
- 12 - Proxy Domain Name: "voxtelesys.net"
- 13 - Proxy Host Name: "xxxxxx-xxxx.sip"
- This is the first portion of your Voxtelesys domain: "xxxxxx-xxxx.sip.voxtelesys.net"
- 14 - SIP Carrier Choice: "Carrier B"
Configure the following:
- 01 - Registration: "Enabled"
- 02 - User ID: "Your domain username"
- 03 - Authentication User ID: "Your domain username"
- 04 - Authentication Password: "Your domain password"
Your settings in this section may vary but Googles DNS of 8.8.8.8 is recommended.
Match the Settings in the image.
Configure the following:
- 28 - Audio Capability Prioity: "G.711_PT"
DID Numbers/Caller ID Steps:
In this section you would select the Trunk and this is going to be the default caller ID for that Trunk.
In this section you can set up your trunk to support the mode of DID.
Enter the following:
- 01 - Received Number: "Put in the last 7 digits of your Voxtelesys DID"
- 02 - Target: "This is the destination the call will route to, IVR, Queue, extension, etc."
Learning Hub / Tutorials / NEC / SIP Trunk SetupFAQs
