[Asterisk-Users] A few questions - isdn call routing

[Peter Svensson]

On Tue, 3 Aug 2004 clive18 at webmail.co.za wrote:

> There is a device called a "parlay" made by a crowd called
> voxtream which will route the ISDN calls based on the DID
> and/or the callerid, before the  call is answered.
> 
> It would be nice if this feature could be done in Asterisk
> as well, but at this point in time, it first answers the
> call.

Are you sure about this? When I looked at the traces on our setup it seems 
that CONNECT was only sent on the incoming leg after it was received from 
the outgoing leg. As a graph:


   pstn <-pri-> asterisk <-pri-> other_device


   pstn            asterisk            other device
        -SETUP->
                   dial(...)
        <-PROCEEDING-
                            -SETUP->
        <-ALERTING-
                            <-PROCEEDING-
                            <-ALERTING-
                            <-CONNECT
                            -CONNECT ACK->
        <-CONNECT-
        -CONNECT ACK->


Peter