Howto:Trigger an external Alarm Multicast: Difference between revisions

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(New page: An external contact should trigger a multicast announcement. For example pressing a button a message like “warning, please leave section four” on all IP-Phone should reproduces. The f...)
 
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Latest revision as of 11:01, 17 August 2017

An external contact should trigger a multicast announcement. For example pressing a button a message like “warning, please leave section four” on all IP-Phone should reproduces. The feature itself is just the multicast service and also external devices, if capable, could be involved. Similar feature are jet described in this wiki, they use the conference circuit. In this case an IP311 is used for the feature, so without any DSP and without XML. Here is how.

Applies To

PBX Version 12 or higher.

For each cannel one analogue FXS and one FXO is required. Using a IP311 for example up to 2 channels are available, using an additional IP22 up to 4 (because the IP311 has 4 FXO Ports).

Please note that the message played starts and play until the contact is closed. If the contact opens the message will stop.

The PBX must have correct time and date, therefore a DHCP or time sever must be reachable.

After an alarm starts a period of 60 second before a new alarm is possible.


More Information

The principle is that a wake-up service triggering each minute calls an analogue port. Practically the analogue port is continuously in call status (the led on the IP311 is blinking all the time). The contact close a connection between the analogue port and a analogue trunk line, therefore the PBX see a call coming in and connect this call to the multicast object. The result is that the “wakeup message” is played. If the contact opens the system return to the idle mode and all calls are closed. After one minute the analogue porta is called again form the wakeup service.

Configuration

Configure a Waiting queue and point to the message that should be reproduced (if you call that queue you should hear the message). Now configure an analogue user in the PBX for the Port TEL1. Setup a wake-up call for that user, put in “second” “1” and switch the flag “multiple” on, as number (or name) put in your WQ. For testing connect an analogue phone on TEL1, after one minute the phone will ring, pick up the receiver and hear the announcement. Now configure an active Multicast object and put your IP-Phones in. Calling that object it must be possible doing an announcement on the phones in the group. Last issue: setup a trunk line and put in all the “Trunk” fields like “No Answer” or “Rejected” the number or name of the multicast object.

Alrm01.png

If you take a wire and connect the TEL1 port with the FXO1 the message will be reproduced on the IP-Phones until you disconnect the wiring. This connection will be substituted by the alarm button.

Known Problems

The message play until the contact is closed. If the contact opens the message will stop.

The PBX must have correct time and date, therefore a DHCP or time sever must be reachable.

After an alarm starts a period of 60 second before a new alarm is possible.