A few days ago, i tried to make asterisk work with some Conexant voice fax modem, as you might expect if you are a Linux user, it didn’t work, even under windows, there was no support for V2xx and a simple answering machine was out of the question (Would not work with advanced phone recorder for example)… It also will not be able to call me when the surveillance system gets triggered, Under linux, the free driver is limited to 14.4Kbps data speeds and can not do voice.
Asterisk can use an INTEL fax modem i have heard, but with poor quality.
When you first install this, both Windows XP and Windows Vista will identify the modem as ….., updating the driver from the Connexant website would make the modem appear as … in the device manager, but no application will be able to use it saying it is held by another application which it is not.
I am yet to find a way to make it work under either Vista or XP, and i will let you know here as soon as i can figure it out, Meanwhile a Motorola MOT PC3 0445DGEA32 works fine with advanced phone recorder, and i will be telling you all about that in the next round of modem worx.
Anyways, the fax modem i have used is here