3CX phone onboarding over VPN

[chrisjako]

My 2 sites have Smoothwall connected VPN to join our domain and networks

 

Site 1 on the subnet where my 3CX PBX is hosted the portal picks up provisioning phones no problem.

 

Site 2 I have to connect DHCP reserve the handsets IP address, then add option 66 to point to the unique handsets provisioning URL, plus add the mac address to 3CX prior - it's a long winded way round of doing it in comparison to site 1, but it at least works.

 

Can anyone offer advice on how to get 3CX to detect handsets on my site 2 for provisioning? I can't setup a SBC for site 2 as there are over 120 handsets which is pushing the boundaries of SBC

[FN-GM]

On site 1 is the phone and the PBX in the same subnet?

 

We do option 2 but the DHCP options are permanent. The phone will need to be scanned into the asset register anyway so it is provisioned in 3CX at the same time. We scan the MAC Address barcode and it's in quickly.

[chrisjako]

On site 1 is the phone and the PBX in the same subnet?

 

We do option 2 but the DHCP options are permanent. The phone will need to be scanned into the asset register anyway so it is provisioned in 3CX at the same time. We scan the MAC Address barcode and it's in quickly.

 

Yes site 1 and PBX are on the same subnet, the failover PBX is on site 2

 

I've decided to use an old smoothwall S8 box as an SBC controller, they have I7's in them with 4GB RAM and i've been told by a titanium 3CX reseller it should easily handle 200 extensions simultaneously running - we are only licenced for 32 anyway and a custom 3CX report shows only 12 have ever been in use at any one time