[Freeswitch-users] Mutiple GSMopen USB modem setup

Wed Dec 19 16:03:16 MSK 2012

yep, seen that.

I was hoping for something tried and true :).

On Wed, Dec 19, 2012 at 1:35 PM, Dmitry Lysenko
<dvl36.ripe.nick at gmail.com> wrote:
> Here (http://wiki.e1550.mobi/doku.php?id=troubleshooting) you can find some
> useful info and udev rules file.
> Do not tried it yet, but it seems it can work. Maybe after slightly
> patching.
>
>
> 2012/12/19 Giovanni Maruzzelli <gmaruzz at celliax.org>
>>
>> Nandy and Dimitry,
>>
>> please let us know your findings.
>>
>> Thanks for sharing!
>>
>> -giovanni
>>
>> On Wed, Dec 19, 2012 at 4:46 AM, Nandy Dagondon <nandy1925 at gmail.com>
>> wrote:
>> > Hi Giovanni,
>> >
>> > I have not tested it yet. As mentioned by Dmitry, modem serial numbers
>> > are
>> > not accessible. Perhaps, mapping the serial port based on the USB port
>> > where
>> > they're connected would, at least, a workable solution somewhat as
>> > discussed
>> > in this post:
>> >
>> >
>> > http://stackoverflow.com/questions/4800099/how-to-identify-multiple-usb-serial-adapters-under-ubuntu-10-1
>> >
>> > Rgds,
>> > Nandy
>> >
>> >
>> > On Tue, Dec 18, 2012 at 9:03 PM, Dmitry Lysenko
>> > <dvl36.ripe.nick at gmail.com>
>> > wrote:
>> >>
>> >> Hi!
>> >> Huawei USB modems does not have accessible via USB protocol serial
>> >> numbers. At least E1550, E153 and E171.
>> >> Best wishes,
>> >>  Dmitry.
>> >>
>> >>
>> >> 2012/12/16 Nandy Dagondon <nandy1925 at gmail.com>
>> >>>
>> >>> Thanks for the feedback Giovanni.  Re fixing the ttyUSB port
>> >>> assignment,
>> >>> I have searched a guy made a script to scan USB serial numbers using
>> >>> udev,
>> >>> then created symbolic links. Will try it out later.
>> >>> /Nandy
>> >>>
>> >>>
>> >>>
>> >>> On Thu, Dec 13, 2012 at 7:02 PM, Giovanni Maruzzelli
>> >>> <gmaruzz at gmail.com>
>> >>> wrote:
>> >>>>
>> >>>> On Thu, Dec 13, 2012 at 4:44 AM, Nandy Dagondon <nandy1925 at gmail.com>
>> >>>> wrote:
>> >>>> > I have run GSMOpen on CentOS 5.7 defying the Wiki advisory.
>> >>>> > Questions:
>> >>>>
>> >>>> I would invite you to go for the OS distros detailed in the wiki
>> >>>> page.
>> >>>> You'll probably encounter problems with different distros, and you're
>> >>>> on your own to solve it.
>> >>>>
>> >>>> > 1. What is the maximum number of USB modems tested? Can we get the
>> >>>> > numbers
>> >>>> > and the CPU used?
>> >>>>
>> >>>> I've heard about 48 concurrent, and 64. Me personally have tested
>> >>>> with
>> >>>> 5. No CPU consumption. The critical part is the USB BUS. So use
>> >>>> cascading and POWERED good usb 2.0 hubs
>> >>>>
>> >>>> > 2. I'll be installing multiple modems each connected to a different
>> >>>> > mobile
>> >>>> > network. Is the /dev/ttyUSB assignments  constant for every modem?
>> >>>> > Meaning
>> >>>> > it doesn't change if I plug it on different USB jacks.
>> >>>>
>> >>>> it will change not only if you change USB port, but also randomly if
>> >>>> you stay on the same USB port and reboot (and sometimes also without
>> >>>> rebooting). That's a "feature" of Linux distros (a demented one,
>> >>>> cannot understand why they choose this behavior).
>> >>>>
>> >>>> Soon or later I'll look into this, and come out with a solution (I've
>> >>>> made some preliminary research and reasoning about in the past).
>> >>>>
>> >>>> If you have a commercial interest in that, and a real budget for it,
>> >>>> contact me in private as consultant, or put a public bounty on it.
>> >>>>
>> >>>> -giovanni
>> >>>>
>> >>>> --
>> >>>> Sincerely,
>> >>>>
>> >>>> Giovanni Maruzzelli
>> >>>> Cell : +39-347-2665618
>> >>>>
>> >>>>
>> >>>>
>> >>>> _________________________________________________________________________
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>> >>
>> >>
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>> >>
>> >> 
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>> >
>> >
>> >
>> > _________________________________________________________________________
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>> > http://www.freeswitchsolutions.com
>> >
>> > 
>> > 
>> >
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>>
>>
>> --
>> Sincerely,
>>
>> Giovanni Maruzzelli
>> Cell : +39-347-2665618
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
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>
>
>
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>
> 
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-- 
Sincerely,

Giovanni Maruzzelli
Cell : +39-347-2665618