Hi,
I'm looking for a reliable, reasonably-priced, single-channel
interface between * and US GSM.
The VOIP GSM Gateways listed at
http://www.voip-info.org/wiki-VOIP+GSM+Gateways
(VoiceBlue, QUTEX) are multichannel systems, very expensive
($2500 or more).
Next step down, there are various Fixed Cellular Terminal
(FCT) or Fixed Wireless Terminal (FWT) devices. These
typically have an FXS interface.
http://www.voip-info.org/wiki-Asterisk+Connecting+to+the+Cellular+Network
Unfortunately, the mainstream devices (Nokia, Ericsson, Siemens) seem to
omit the US 850 MHz band. The few that have this band, e.g. Telular, are
quite expensive (> $500) and I can't seem to find any good reviews.
At the bottom are "docking stations" for cellular handsets, e.g.
CellSocket.
They are cheap enough (~ $100 + an old phone), and there is lots of
commentary about them, but alas, it's mostly negative.
Anyone have good luck connecting to US GSM?
Thanks,
Stewart
