Communications Manager (CallManager) Automatic Ringdown (PLAR)

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Feb 26th, 2008
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We have installed Communications Manager (CallManager) 6.01a for the State Legislature. The Senate members have analog phones inside their podiums. These phones are configured so that if they lift the handset a specified line on their Secretaries phone will ring (Automatic Ringdown/PLAR). The same situation in reverse is true. If the Secretary presses the specified line button on their phone, the Senators phone in the podium will ring. This all works great. The problem is when one of the parties hangs up and the other party delays hanging up by a couple of seconds, the system rings the other party again. Of course the party that is delaying hanging their phone up does eventually do so, so the other persons phone rings once and stops. The called party answers which causes the other phone to ring. It becomes a constant cycle. I am looking for a way to slightly delay the placing of the PLAR call. The analog phones are connected to a VG224. All other phones are IP Phones. Some are IP to IP, some are analog to IP.


Thanks!!!


Adam

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Rob Huffman Wed, 02/27/2008 - 06:42
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Hi Adam,


That is a tricky one for sure :) If you have the luxury of any spare Line buttons on the Secretary end IP Phones I would try to seperate these functions as PLAR's are meant to be "one-way" type of connections. So on the Secretary phone have a "Call" button and an "Answer" button. If you don't have the ability to do this due to lack of spare lines you could try to at least put all of the Senate Member lines in a similar group of numbers and then setup some sort of Number plan overlap that delays the dialing back to these lines due to the T302 Timer. Kind of reverse engineering I guess :)


Hope this helps!

Rob

mwadam Wed, 02/27/2008 - 06:55
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Rob,


Thanks for the input. Unfortunately they do not have adequate lines available to try what you suggest. Although it is a good idea. I thought about the timer, but since everything is a perfect match it won't work. I will take a look and see if I can dink with the PLAR dialplan. They don't know the numbers, so it would not matter if they changed.


Thanks for the suggestions!!!


Adam

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