You can also do automatic ring-down from a Polycom phone or from an analog port on a Patton gateway...
From: [email protected] [mailto:[email protected]] On Behalf Of Tony Graziano Sent: Thursday, January 22, 2009 9:09 AM To: [email protected] Subject: [sipx-users] Integration with door access control systems I have been looking at a couple of different products that have a sip based "call" button for use at an external door that could call a hunt group (UPS delivery, etc.) and allow someone to pickup the phone and press a button which would trigger a relay to open/unlock a door. I have looked at both the Cyberdata and Aleen products: http://www.cyberdata.net/products/voip/voip-intercom.html http://www.its-tel.com/info.asp?id=48 Has anyone done either of these? Does anyone have other success with this type of integration? Tony
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