I'd be careful. If you have door unlocks, you need one that will filter out incoming DTMF, or someone will use a pocket dialer to break into the place. Viking designs around that issue only allowing one way DTMF once speaker is enabled.
From: [email protected] [mailto:[email protected]] On Behalf Of Michael Scheidell Sent: Friday, October 22, 2010 12:47 PM To: [email protected] Subject: Re: [sipx-users] SIP Door Phone or Entry Phone On 10/22/10 3:42 PM, Morgan, Michael wrote: Can anyone recommend a Door Phone or Entry Phone that is SIP and compatible with 4.2.1. This would be a press a button to communicate with a speaker phone. Oh yes, it needs to be low cost. I found some but they were ~$300. how about a cheap analog box and a cheap ata? we need not only intercom, but electronic door unlock. the analog one was $400, the sip one was $1200. But for $450, we got the analog one with an ATA. -- Michael Scheidell, CTO o: 561-999-5000 d: 561-948-2259 ISN: 1259*1300 > | SECNAP Network Security Corporation . Certified SNORT Integrator . 2008-9 Hot Company Award Winner, World Executive Alliance . Five-Star Partner Program 2009, VARBusiness . Best in Email Security,2010: Network Products Guide . King of Spam Filters, SC Magazine 2008 _____ This email has been scanned and certified safe by SpammerTrapR. For Information please see http://www.secnap.com/products/spammertrap/ _____
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