[Asterisk-Users] asterisk tries to dial out on lines already inuse.

[Craig Guy]

It sounds like you have multiple devices sharing the same physical lines?  I
think you will continue to have problems until you can rearrange the setup
to avoid line sharing to allow Asterisk to have dedicated access.  Might
have more luck with ISDN.

Craig

----- Original Message ----- 
From: "Jon Gabrielson" <jon at directfreight.com>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<asterisk-users at lists.digium.com>
Sent: Monday, January 31, 2005 8:14 AM
Subject: Re: [Asterisk-Users] asterisk tries to dial out on lines already
inuse.


> Asterisk should be able to do this, there are several cases
> when this is essential.  The first is a shared/party line where
> asterisk cannot have guaranteed access for whatever reason.
> In our case, that reason happens to be because we also use
> our outgoing lines for faxing.
> The second is that without dialtone detection, if for some
> reason the line is down, asterisk needs to know so that it can
> try a different outgoing line.  If the first line is down, asterisk
> shouldn't hang, it should wait a few seconds and try to dial
> out on the next line.
>
>
>
> Jon.
>
>
> On Sunday 30 January 2005 04:13 pm, Steven Critchfield wrote:
> > On Sun, 2005-01-30 at 13:40 -0600, Jon Gabrielson wrote:
> > > Can't asterisk look for a dialtone?  Even a $5 modem
> > > can detect whether or not there is a dialtone.
> >
> > Maybe you should just use your $5 modem and write your own software.
> >
> > Asterisk is a PBX. PBXs shouldn't have to deal with your bastardized
> > setup that doesn't respect the normal way in which a PBX is set up. A
> > PBX sits between the PSTN and ALL other access to the PSTN. In doing so,
> > asterisk can know ahead of time that the line is available. If you wait
> > for dialtone detection, then you have to also make code to understand
> > all international dialtones as well. Then you have to delay dial till
> > you are certain it is the tone you are expecting.
> >
> > > On Sunday 30 January 2005 10:37 am, Wilson Pickett wrote:
> > > > > When I place a call with asterisk, asterisk will try to dial
> > > > > out on the first line even if the first line is already being
> > > > > used by someone else.  Any ideas on what I'm doing
> > > > > wrong?
> > > >
> > > > My question would be, how would asterisk know the line is in use if
it
> > > > isn't controlling it?
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