Phone provisioning over VPN

[Dercni]

Hi,
I have two sites connected by a VPN:

1. Main office: 192.168.1.0/24
2. Satellite office: 192.168.2.0/24

Both LANs can talk to each other

3CX & IP phones at the main office work fine.

I am unable to get the IP phones at the stellite office to connect to 3CX
I am following this guide:
https://www.3cx.com/sip-phones/grandstream-gxp21-series

When configuring the IP Phone in 3CX can I use "Local LAN (in the office) and both point DHCP 161 to 3CX and manually enter the provisioning link into the phone config?

 

[Dercni]

This is the scenario I believe I am dealing with:
https://www.3cx.com/sip-phones/#h.1etod1ebg1vu

Everything is configured in accordance with the guide yet the phones will not provision?

 

[Saqqara]

Add the phone under the extension within 3cx management console - add MAC address of phone , local lan , etc

Then configure option 66 on the dhcp server at the remote site https://www.3cx.com/sip-phones/dhcp-option-66/ - need http option

Not option 161, as stated in your post

Reboot phone, and hopefully it will provision.

 

[Dercni]

My apologies, it was a VPN issue. Resolved now and phones provisioning