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.
_______________________________________________
--Bandwidth and Colocation sponsored by Easynews.com --
Asterisk-Users mailing list
Asterisk-Users@lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
