[arm-allstar] Integrate VOIP Phones to HamVoip

[Steve Mahler]

Good Morning and Happy Mardi Gras !!

The short version.  I have several HAMVOIP servers running on 3B RPi's. 
They are operating well.  I now have a couple of VOIP phones (Polycom 
VVX 400 series). I am looking for information or cheatsheets on how to 
connect the phone to the HamVOIP servers. For the purpose of:

1) use the phone as a dial-up direct connect to the main node number.  
Using the phone like a radio (*99 / #).

2) being able to dial-up direct connect to a node on a different server, 
again using phone as a radio.

3) being able to dial-up, ring and talk from phone to phone on two 
remote servers, while the radio services and links continue to operate 
normally.

I have found a few hints on youtube videos about modifying sip & 
extensions dot conf files. But they are just phones on a single server 
with no radio network present. Or, only a phone on a single node server.

I would appreciate pointers to information on how to do the items 1 to 3 
above.

Thank you,  ...STeve