[asterisk-users] Detect IP path before calling

[Yuan LIU]

>From: "Bill Gibbs" <bgibbs at edurotech.com>
>
>If you send the SIP call to the remote end which is no longer available 
>(unreachable, etc) and have another Dial statement, it will automatically 
>roll over.  I would think this would be just as fast, if not faster, than a 
>script updating a db value you check before each call.
>
>Bill

Unfortunately it takes like forever for SIP dial to timeout.

>-----Original Message-----
>From: asterisk-users-bounces at lists.digium.com on behalf of Yuan LIU
>Sent: Wed 1/3/2007 10:33 PM
>To: asterisk-users at lists.digium.com
>Subject: Re: [asterisk-users] Detect IP path before calling
>
> >From: Paul Hales <pdhales at optusnet.com.au>
> >
> >With the chanisavail command.
> >
> >PaulH
>
>Doesn't seem to have effect.  Probably I should state the problem more
>clearly.  Ideally, Asterisk should not attempt SIP if there's no way to
>establish a SIP call.  This may include lack of IP connection (ping 
>timeout,
>for example), or no SIP listener on remote side (this would be difficult
>because Asterisk can only use UDP).
>
>My environment does not require remote end point to register, so consulting
>the registry is not an option. (This is perhaps what ChanIsAvail does.)
>
>Any suggestions?  I'll go to scripting if no other easy way.
>
>Yuan Liu
>
> >On Wed, 2007-01-03 at 14:22 -0800, Yuan LIU wrote:
> > > Any easy way to determine if IP connectivity before attempting a SIP
> >call?
> > > IP connectivity could be a timeout.
> > >
> > > Yuan Liu
>
>
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