Is it possible to implement dispatch communication on a voip gateway?

Question

Telephony

Good afternoon, is the following implementation possible.
It is necessary to organize a dispatching connection in the house. There is a dispatcher who can call the city. that is, the dispatcher must have an external number and register somewhere higher. There is a control room where there should be an internal number. When picking up the handset, the HotLine should work and the call should go to the dispatcher. When making a call from the dispatcher to the control room, the handset should be immediately lifted and the external speaker on the device and the microphone should turn on.
I would also like to connect intercoms to the gateway via the FXS port.
Is it possible? On the Natex gateway for example?

Answer 1

If we talk about VoIP / SIP - Yealink devices exactly support the functionality of both HotLine and Intercom.
One gateway may not be enough - it is better to check all the necessary functionality and compatibility with terminal equipment from the same Natex.
Almost everything is possible to implement using Asterisk.