What we need is a direct ethernet device that can do this. Perhaps something similar to Lonnie's design but with an AVR/PIC that will receive the contact closure and then fire a SIP message to the proxy.
It would cost much the same as an ATA but would be a single device rather than 2 devices. Not sure how much of a market there would be for it though. Lonnie, contact me off list. I have an idea!! Mark On Fri, 2008-02-29 at 01:02 -0500, bochter wrote: > Lonnie > > This is a nice and easy way there are other ways to use this > You and do this with the grandstream ATA's also > > Is there an easy way not to use the ATA that would help keep the cost down. > > Lonnie Abelbeck wrote: > > This slightly off topic for this list, but I think it might be of > > interest to the AstLinux readers. > > > > This "Doorbell Asterisk Project" uses about $20 of electronics > > components from Radio Shack to ring phones, send email, pager, etc > > via asterisk. If using a soldering iron and a multi-meter are not > > your thing, stop reading any further. > > > > This project has applications in both the home and office, ex. > > logging when your home doorbell is pressed while you are away, or > > ringing an office manager's phone when the rear loading dock doorbell > > is pressed. > > > > A unique ringtone is useful in this situation, ex. the SPA-942 allows > > for a user defined "DoorBell" ringtone to be downloaded. > > > > Description: > > > > Circuit starts with a traditional doorbell chime installation, but > > when the doorbell is pressed, instead of ringing a local chime/bell, > > a local phone FXS port is taken Off-Hook for about 5 seconds. When > > properly configured, this Off-Hook signal can ring phones, send > > email, pager, etc. via asterisk. > > > > A SIP ATA is used to automatically dial a local extension, using a > > hotline feature in its dial plan. > > > > All previously installed doorbell chimes were disconnected, and the > > input of this circuit is placed in parallel with the previous chimes > > (s). The circuit should also operate with a chime left in parallel, > > in such case resister R1 is probably not needed, but this > > configuration has not been tested, and can vary on the type of chime. > > > > Parts list and Description: > > http://lonnie.abelbeck.com/share/doorbell-off-hook-parts.txt > > > > Circuit Diagram: > > http://lonnie.abelbeck.com/share/doorbell-off-hook-circuit.pdf > > > > Project Photo in 4" x 4" x 2" electrical junction box: > > http://lonnie.abelbeck.com/share/doorbell-off-hook.jpg > > > > Enjoy, > > > > Lonnie > > > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by: Microsoft > > Defy all challenges. Microsoft(R) Visual Studio 2008. > > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > > _______________________________________________ > > Astlinux-users mailing list > > Astlinux-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/astlinux-users > > > > Donations to support AstLinux are graciously accepted via PayPal to [EMAIL > > PROTECTED] > > > > > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Astlinux-users mailing list > Astlinux-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/astlinux-users > > Donations to support AstLinux are graciously accepted via PayPal to [EMAIL > PROTECTED] -- Mark Phillips, G7LTT/NI2O Randolph, NJ ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Astlinux-users mailing list Astlinux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/astlinux-users Donations to support AstLinux are graciously accepted via PayPal to [EMAIL PROTECTED]
