[Asterisk-Users] GSM gateway for Asterisk

[OTR Comm]

I forwarded your note below to sales at skymicrowave.com.  I found some docas
on the FCT-11M at their site, but it was in Chinese, so I sent them your
problem.

Hope they will respond to this list and maybe to you directly.

Murrah Boswel

----- Original Message ----- 
From: "Bill Michaelson" <bill at cosi.com>
To: <asterisk-users at lists.digium.com>
Sent: Monday, October 24, 2005 9:42 PM
Subject: [Asterisk-Users] GSM gateway for Asterisk


> I recently obtained a FCT-11M GSM-analog converter box.  It arrived with
> no documentation.  So I popped in a SIM chip, and connected the the RJ11
> port to an FXO port on my Asterisk box.  It worked smoothly right away
> for inbound and outbound calls in all respects.  For about an hour.
> Then either spontaneously or due to some action I've been unable to
> identify, call supervision and other functions became flaky.
>
> First, I noticed inbound calls started malfunctioning.  The Asterisk box
> answers, but no audio is heard on either end (the dialplan bridges to a
> SIP phone).  Also, the call never ends.  I can only knock it down by
> using CLI soft hangup or restarting Asterisk.
>
> Then outbound calls got wierd.  It will dial out thru the GSM network to
> my cellphone, and audio is OK in both directions, but call termination
> fails if initiated from the remote GSM side.  In that case, the box
> emits three short beeps, followed by a steady beep which is audible on
> the SIP phone to which the call is bridged.  The channels don't hangup
> until the SIP phone causes it to.
>
> I was initially concerned that I had fried the FXO port by using an
> incompatible device, but I've ascertained that the port still works OK
> with a POTS line.
>
> I now suspect that the FCT-11M has been reconfigured somehow, since I
> obtained it and it was working.  But I have no clue about how to examine
> it's configuration if possible at all.  It has a USB (master) port but I
> don't know what it is for.
>
> Does anyone know if English documentation is available, or otherwise
> have any ideas on how to debug this?  Much appreciate any insights.
>
>
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