TDM Gateways let us move from traditional telephony protocols such as analog FXO/FXS, BRI, T1, or E1, to the SIP protocol. This conversion allows us to deploy solutions such as the following:
Enable Branch Office Survivability
Connect Legacy Equipment to an IP PBX or to an SIP Trunk Provider
Fail-Over/High Availability
As stated in the previous recipe, these gateways increase our Elastix capabilities.
Knowing the IP address of the gateway, enter into the administration mode, and depending on its manufacturer, create an SIP trunk to your Elastix server.
Create an SIP trunk in your Elastix server towards the gateway, with the proper dialing options and permissions.
Adapt or manipulate the gateway's internal Dialplan in order to send and receive calls to and from the Elastix server.
Manipulate Elastix's Dialplan in order to send the required calls through the SIP trunk created for the gateway.
Create the proper inbound routes for incoming calls through...