Grouping issues in ISDN - Dahadi

Hi All,

Thanks for your time to look into this issue.

I want to create 5 channels for outgoing and 25 channels for incoming.

But i am unable to do so.

Here is how my chan_dahadi.conf looks like

[channels]
language=en
rxgain=1.0
txgain=1.0
usecallerid=yes
callerid=asreceived
busydetect=no
context=default
echotraining=no
echocancel=yes
echocancelwhenbridged=no
usecallingpres=yes
callprogress=no
prilocaldialplan=unknown
pridialplan=unknown
overlapdial=yes
switchtype=euroisdn
immediate=no
group=0
signalling=pri_cpe

;Digium T122P port 1

context=from-pstn (Incoming)
channel => 1-15
channel => 17-26

context=outgoing (Outgoing)
group=25
channel => 27-31

Here is how my extensions.conf looks like
[outgoing]
exten => _9.,1,Dial(DAHDI/g25/${EXTEN:1})
exten => _9.,1,Dial(DAHDI/28/${EXTEN:1})

However g25 doesnot picks up the channels between 27-31 and fails to execute, so i comment that line, and use dedicated channels to make call like the one here eg.channel 28 and calls go through perfectly

Please advice, i think i am making some mistake somewhere.

Your response will be highly appreciated.

Regards