[Asterisk-Users] defining the zap channel used on inbound analogue calls

[Robert Webb]

On Fri, 18 Feb 2005 18:11:26 -0000
  "Brett, Gary" <gary.brett at cetelem.co.uk> wrote:
> 
> Hello all
> 
> I am relatively new to asterisk and am sure this will be 
>a simple question
> to answer. I have a TDM400p card and I am in the process 
>of creating my dial
> plan, however I am a bit stuck on one thing. I have 2 
>analogue lines (each
> obviously with its own DDI) connected to the card; I 
>want to set it up so
> that if I dial inbound to the first DDI (e.g. 
>02087775555) it will go to the
> IVR and when I ring inbound to the second DDI (e.g. 
>02087776666) I want it
> to go directly to the SIP phone internally. Its with the 
>latter I am having
> the issue 
> 
> My problem is this .... Due to the fact these are 
>analogue lines, I realise
> that the DDI is not sent to the TDM400P so I presume the 
>only way for the
> dial plan to filter inbound calls is by the Zap Channel 
>it came in on? (In
> my case Zap/1 and Zap/2). I have tried the following
> 
> ------
> [globals]
> 
> INBOUND=Zap/2
> 
> [default]
> 
> exten => ${INBOUND},1,Answer
> exten => ${INBOUND},2,Background(soundfile),tT
> exten => ${INBOUND},3,Hangup
> 
> ------
> I also tried 
> exten => Zap/2,1,Answer
> 
> And
> 
> exten => Zap/2-1,1,Answer
> 
> And various other combinations all to no avail, is it 
>possible to filter by
> the Zap channel used ?, Surely if I want to direct call 
>a phone, I don’t
> have to go through an IVR everytime ?? (I realise this 
>wouldn’t be an issue
> with ISDN).
> 
> I noticed also in some documentation that you have to 
>use an ‘s’ for all
> analogue traffic, is this the case ?? and if so can you 
>use it in
> conjunction with a zap channel definition ??
> 
> So in summary, How does the dialplan define the Zap 
>channel used on inbound
> analogue calls
> 
> Any help would be greatly appreciated
> Gary
> 

Try using a different context for each incoming channel in 
the zapata.conf. An example is below, except I have one 
FXO and one FXS. But the concept is the same.

[channels]

context=analog
signalling=fxo_ks
echocancel=yes
echocancelwhenbridged=yes
echotraining=800
relaxdtmf=yes
rxgain=0.0
txgain=5.0
busydetect=yes
callprogress=yes
usecallerid=yes
callwaiting=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
callreturn=yes
cancallforward=yes
adsi=yes
mailbox = 2000
faxdetect=incoming
channel => 1

context = fromPSTN
signalling=fxs_ks
rxgain=5.0
txgain=0.0
channel => 4