[Freeswitch-users] mod_gsmopen: call connects, silence, lose /dev/ttyUSB2...

[Giovanni Maruzzelli]

Is the usb subsystem. So it can be chipset, power supply, internal wiring,
etc.
On Sep 10, 2013 7:32 AM, "Jayanth Acharya" <jayachar88 at gmail.com> wrote:

> Thanks Giovanni. I will try with alternative PC (afraid that I don't have
> a server handy), and with external powered USB2.0 hub (good quality one).
> Probably with try to get hold of alternate dongle as well.
>
> Since people have managed to get such rigs working with puny hardware like
> RaspberryPi, I feel that I am perhaps missing some very fundamental step
> somewhere, or is a case of plain bad luck with the particular hardware I
> procured.
>
>
> On Tue, Sep 10, 2013 at 3:41 AM, Giovanni Maruzzelli <gmaruzz at gmail.com>wrote:
>
>> You probably have hardware problems in your platform usb subsystem. Can
>> be power supply, can be chipset, can be whatever. Seems evident to me you
>> continue to encounter platform stability problems and ou expect they go
>> away ;).
>> I would just use a real hardware server, with 64 bit debian, and be happy.
>> Or be prepared to debug platform hardware prolems, not depending from
>> mod-gsmopen.
>> This is my feeling. Obviously, I can be wrong.
>> -giovanni
>> On Sep 9, 2013 11:19 PM, "Jayanth Acharya" <jayachar88 at gmail.com> wrote:
>>
>>> Recently I replaced my Huawei E1550 with a Huawei E173-U2 modem. Both
>>> modems are completely unlocked (and voice enabled), with latest firmware
>>> files, as per dc-files.com site. While with Huawei E1550, I was having
>>> this terrible voice-quality issue, with Huawei E173-U2, I fared much better
>>> initially (last night), and my first call went through perfectly, and I got
>>> connected to the IVR menu "5000". However, since I was facing
>>> signal-quality issues, I used AT^SYSCFG to set the modem to 2G mode, and
>>> got excellent signal. Apart from that, I don't remember making other
>>> changes, but since this morning, I am getting this 100% repeatable problem,
>>> where-in, once I call FS via my mobile, I see the usb-modem attached to FS
>>> (gsmopen EP) ringing, and get connected, but I do not hear the IVR menu
>>> anymore, but complete silence. After a while the call disconnects, and then
>>> I see console log indicating that my /dev/ttyUSB2 (control port) is
>>> probably dead, and as a result the /dev/ttyUSB1 and /dev/ttyUSB2 are
>>> removed, and /dev/ttyUSB3 and /dev/ttyUSB4 are created. If I reconfigure
>>> gsmopen.conf.xml file to use the new audio and control ports, and place
>>> another call, the same thing repeats. I've attempted this across several
>>> reboots, but is 100% repeatable.
>>>
>>> What I see in the console log:
>>> http://pastebin.com/swnz4sWf
>>>
>>> The relevant portion of the freeswitch.log file:
>>> http://pastebin.com/dNkhaGen
>>>
>>> Any ideas / clues as to what's up ? I tried going through the log file,
>>> and what I figured is that nothing seems to be received by FS on the audio
>>> port, and eventually /dev/ttyUSB2 becomes unresponsive, i.e. doesn't
>>> respond to AT-commands. Not sure though.
>>>
>>> - Jay
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> 
>>> 
>>>
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>>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
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>>
>>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
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>
>
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