[asterisk-users] PRI dropouts - solution I hope...

[Paul Hales]

In my experience PRI pass through setups have been false economy.

They seem to save a few dollars, but you still have to spend the money
to save it and they never run as well.

Paul Hales

-- 
Paul Hales
Technical Manager
AsteriskIT
www.asteriskit.com.au
bus: 03 8320 8100
mob: 0434 673 529


On Sat, 2006-07-15 at 22:22 +1000, James Sturges wrote:
> Hi, had a few ask for this so thought may be of interest to the list.
> 
>  
> 
> This is actually for the following setup:
> 
>  
> 
> Telstra ISDN30 <---------> Asterisk <---------> BP250 PABX
> 
>  
> 
> The ISDN10, 20, 30’s are all the same physical link, but you may need
> to change the bchan and dchan settings for ISDN 10 or 20.
> 
>  
> 
> We have had lot of issues over 12 months, including physical cable
> issues, etc.  But this config has passed Telstra test equipment both
> on site and in the exchange.  The calls dropping out (for us) are
> timing issues do to telling Asterisk to gets it synch from the Telstra
> line and providing synch to the PABX.
> 
>  
> 
> Anyway, Here it is, does not look like much but have had experts
> working on it for a while.
> 
>  
> 
> The system handles 1800 – 2000 calls per day.
> 
>  
> 
> Thanks
> 
>  
> 
> James
> 
>  
> 
> ZAPATA.conf
> 
> [channels]
> 
> context=default
> 
> musiconhold=default
> 
> switchtype=euroisdn
> 
> usecallerid=yes
> 
> cidsignalling=v23
> 
> cidstart=polarity
> 
> hidecallerid=no
> 
> callwaiting=no
> 
> usecallingpres=yes
> 
> callwaitingcallerid=yes
> 
> threewaycalling=yes
> 
> transfer=yes
> 
> cancallforward=yes
> 
> callreturn=yes
> 
> echocancel=yes
> 
> echocancelwhenbridged=yes
> 
> echotraining=800
> 
> rxgain=0.0
> 
> txgain=0.0
> 
>  
> 
> group=1
> 
> context=te405p-intelstra
> 
> pridialplan=local
> 
> signalling=pri_cpe
> 
> callerid=asreceived
> 
> channel=>1-15, 17-31
> 
>  
> 
> group=4
> 
> context=te405p-frombp250
> 
> pridialplan=local
> 
> signalling=pri_net
> 
> overlapdial=yes
> 
> callerid=asreceived
> 
> channel=>94-108, 110-124
> 
>  
> 
> ZAPTEL.conf
> 
> #
> 
> # Zaptel Configuration File
> 
> #
> 
> # This file is parsed by the Zaptel Configurator, ztcfg
> 
>  
> 
> span=1,1,0,ccs,hdb3,crc4
> 
> bchan=1-15
> 
> dchan=16
> 
> bchan=17-31
> 
> span=2,0,0,ccs,hdb3,crc4
> 
> bchan=32-46
> 
> dchan=47
> 
> bchan=48-62
> 
> span=3,0,0,ccs,hdb3,crc4
> 
> bchan=63-77
> 
> dchan=78
> 
> bchan=79-93
> 
> span=4,0,0,ccs,hdb3,crc4
> 
> bchan=94-108
> 
> dchan=109
> 
> bchan=110-124 
> 
>  
> 
> loadzone=au
> 
> defaultzone=au 
> 
>