[asterisk-users] Diagnosing dropped calls...

[Carlos Chavez]

	The other thing that baffles me about this setup is that it only seems
to happen to people who are connected to the internal network in the
office.  They have about 30 remote users that have not reported this
same problem, their issue is usually bandwidth related from their home
connection.

	We have checked the internal network several times and there is not any
obvious problem (apart from the dropped calls).  They use high end Cisco
switches and they were just audited to make sure there were no
configuration errors.

	All the internal phones are Aastra (most are 9133i and some others
53i).

On Thu, 2008-07-10 at 20:55 -0400, Steve Totaro wrote:
> Try dropping the IAX2 and only use SIP.  Don't ask "why?"  Just give
> it a try and see if things improve for you.
> 
> Also when you assume, you make and "ass" out of you and "me" (just a
> little joke, get it? ass-u-me.)
> 
> You could be hitting an overloaded router or whatever along the way,
> 10mbs fiber does not mean low latency or lost packets.
> 
> Seriously though, if your business lives and dies by the phone system,
> get T1 with SIP from your provider directly (point to point) with G729
> or just get a real ISDN or POTS lines.
> 
> And then you will still have "dropped" calls depending on your volume
> and how vocal your users are.  Usually, once they perceive a problem,
> then even if the other side of the call is on a cell and the cell
> drops the call, you will get a complaint.  The only way to track those
> down are on a case by case basis with ANI II codes 61-63
> http://www.nanpa.com/number_resource_info/ani_ii_assignments.html
> 
> Thanks,
> Steve Totaro
> 
> On Thu, Jul 10, 2008 at 7:15 PM, Carlos Chavez
> <cursor at telecomabmex.com> wrote:
>                My customer has a 10mpbs fiber connection to the
>         Internet so we have
>         always assumed that the connection is not really a problem.
>          We will
>         look into it.  Thank you.
>         
>         
>         
>         
> 
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-- 
Telecomunicaciones Abiertas de México S.A. de C.V.
Carlos Chávez Prats
Director de Tecnología
+52-55-91169161 ext 2001
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