7900 series IP Phone with third party Gateway/PBX system expansion

[beggi_bilgee]

Hello,

I have a question about 7942G phone and 7937G phone.

A customer wants to add 4x7942G and 1x7937G phone to their existing system.

They currently have third party IP Gateway/PBX system with POE and having Cisco 3x7911G IP phones. Their current install/config is fully operational.

I have few doubts to ask:

1. Just by adding/connecting/configuring  7942G, 7937G  to the existing system will work?
2. 7942G has option for Channels ( CP-7942G-CH1 ----  According to 7942G data sheet) Do customer have to use this model?

Thank you

[paolo bevilacqua · Accepted solution]

1. Really should ask PBX system vendor

2. These all are the same exact identical device.