Having trouble with a Trunk and Outbound route

[Gordon0193 (Gordon Leonard)]

Did a little searching and saw this

HOW TO: Grandstream GXW-4104 setup

This ended up taking me a few more hours than it should have due to the lack of a decent guide ANYWHERE. I thought I’d spare the next person the same problem. In FreePBX create a new SIP Trunk. (You could create one and round robin the numbers, but because I want to be able to send each line to a different spot, I setup four trunks, 6000, 6001, 6002, 6003) In this guide, if I don’t mention something, don’t touch the setting. Trunk Name: NXXNXXXXX (Your phone number eg. 8885551212) Outbound C…

Looks like a multi trunk was used with another Grandstream. For my troubleshooting I setup a multi trunk but enable only one trunk and walked through each port to ensure each is working.

Example:
Line 1 - on
Line 2 - off
Line 3 - off
…
Then
Line 1 - off
Line 2 - on
Line 3 - off

Best of luck, when you figure this out it would be helpful if you post back a detailed solution/fix. Better yet nice How To Guide. : )

Thanks,

Gordon