[asterisk-users] Diagnosing dropped calls...

[Steve Totaro]

Unfounded rumors say that ABE doesn't come with app_rnddropcall ;-]


On Fri, Jul 11, 2008 at 12:40 PM, Carlos Chavez <cursor at telecomabmex.com>
wrote:

>        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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