Operation and Maintenance
• 1 primary external signal destination
• 1 alternative external signal destination
If the system issues an event message, the event message opens a PPP communication channel from the
public network of the communication server to a terminal adapter or modem. Once the event message has
been confirmed, the system clears down the PPP connection.
Signalling an event message to an external signal destination
Figure 74: Flowchart of the signalling of an event message to an external signal destination
The following principles govern the way event messages are signalled to an external signal destination:
• Individual event messages are not signalled if they occur at short intervals. The event messages are
stored temporarily for 5 minutes and then sent together to the external signal destination.
• If over a period of one hour an attempt is made unsuccessfully to send the event messages to the
external signal destination, the signalling period is extended from 5 minutes to 4 hours. As soon as the
event messages are successfully output at the external signal destination, the time period is reset to 5
minutes.
Release 7.1
255 System Manual for Mitel SMB Controller