Substations calling external telephone(s)

This article describes how substations in the AlphaCom can be configured to call external telephone number(s).

• If all lines in the SIP gateway are busy, the call will be queued. When the line becomes free, the call will automatically progress.
• Multiple phone numbers can be defined. If the first phone doesn't answer within a preset time, the call can be routed to a second (and a third...) phone number.

Configure the Call Button of the substation

The call button can be configured in two different ways to dial a preconfigured phone number.

Let's assume that the prefix to the external phone line is "0", and the phone number to call is 987654321.

Alternative 1:

Call Button configuration

Start the string with a "I", followed by the prefix number "0". Then "P", followed by the phone number.

Alternative 2:

Call Button configuration

Start the string with a "T", followed by the prefix number "0". Then "w" or "W", followed by the phone number. "w" introduces a 0.5 second pause, while "W" introduces a 1.0 second pause. See Play DAK Feature for further details.