[Freeswitch-users] Mutiple GSMopen USB modem setup

[Giovanni Maruzzelli]

Hi Nandy,

how it was? It works with that udev thing? Can you describe for me, so
I can put it in the wiki?

-giovanni

On Sun, Dec 16, 2012 at 3:08 AM, Nandy Dagondon <nandy1925 at gmail.com> wrote:
> 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
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
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>> 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
>
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-- 
Sincerely,

Giovanni Maruzzelli
Cell : +39-347-2665618