Provision IP phone with extension over site 2 site VPN

[leo85 (United States)]

Hello,

I have FeePBX version 14.0.4.5 running as a vm with one commercial module – EndPoint manager. All works except I’m having trouble provisioning Yealink IP phone on site 2, site 1 is where PBX server is. I must mention that softphone works ok over vpn and I can provision extension with free version of Zoiper app.

During IP phone provision, the phone gets correct extension and gets assigned with correct admin password set by me in PBX but finial step fails all the time

We use SonicWall firewalls on both sites, I added option 66 to DHCP.

The phone I’m having trouble with is Yealing T42S, I also attached the diagram for better understanding.

It’s very possible I oversight something in the PBX firewall or edge firewalls but can’t figure out what.

Any suggestion or help will be highly

appreciative.

[cynjut (Dave Burgess)]

Have you looked at this discussion from the forum earlier this year?

Happiness With Sonicwalls - It can happen!

Ok - Wasted quite a bit of time this morning with a new configuration we were trying out and I thought I would post it here so that no one else has to waste the same amount of time that I did this morning. First, some general information: For a standard setup with a FreePBX/Asterisk PBX onsite, you will need the following on the Sonicwall: A Port Forwarding rule of 5060-UDP for the Incoming SIP Trunk - Sonicwalls are very AGGRESSIVE about closing that port, so if you use a SIP trunk and you…

There are peculiarities with SonicWALL that you need to be aware of and this discussion covers many of them.

[leo85 (United States)]

Oh gosh, I missed some of those for sure. Will check thoroughly and update this thread, thanks for pointing this thread to me.