[cisco-voip] Dry Closure Phones

[Lelio Fulgenzi]

...and it looks like the TAM-B has been updated to the TAMB2! 

http://www.bogen.com/products/telephonepaging/ 



--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
Cooking with unix is easy. You just sed it and forget it. 
- LFJ (with apologies to Mr. Popeil) 



From: "Eric Butcher" <Eric.Butcher at cdw.com> 
To: "David Zhars" <dzhars at gmail.com>, cisco-voip at puck.nether.net 
Sent: Tuesday, November 23, 2010 1:42:18 PM 
Subject: Re: [cisco-voip] Dry Closure Phones 




With contact closure, you use a pair of wires to create a loop to signal a channel open, and a separate pair of wires to carry the audio (traditional tip and ring pair). You cannot do this without an adaptor. The best way I have found is to use a bogen tam-b or a pagepal, connected to an FXO port. 





Eric Butcher 

Cisco Unified Communications Engineer 
CDW Professional Services 

11711 N Meridian, Ste 225 

Carmel, IN 46032 
( 317.569.4282 - IP Phone 
( 765.744.1458 - Mobile 
* eric.butcher at cdw.com 

http://www.cdw.com/ 





From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of David Zhars 
Sent: Tuesday, November 23, 2010 1:11 PM 
To: cisco-voip at puck.nether.net 
Subject: [cisco-voip] Dry Closure Phones 



An app we are installing at our Police Dept requires the phones to have a "dry closure" contact or something like that. 
If I google this, I see a Dry Closure thing for 2600/3600 series, so I am researching that. 
Do any phones supported by CCM 8 support dry closure? Ultimately, I want the phones to work with SRST, so I probably don't want to stray too far from the Cisco wagon... 

Appreciate any insight. 
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