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

[James Sturges]

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 

 

  _____  

From: James Sturges [mailto:thinking at 1am.com.au] 
Sent: Saturday, 15 July 2006 12:24 PM
To: 'Asterisk Users Mailing List - Non-Commercial Discussion'
Subject: RE: [asterisk-users] PRI dropouts

 

Have had L O T S of trouble like this, the settings zap config files seem to
have to e exact, please send email to thinking at 1am.com.au and I will send
config files.

 

Thanks

 

James

 

  _____  

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Kevin Withnall
Sent: Saturday, 15 July 2006 11:05 AM
To: asterisk-users at lists.digium.com
Subject: [asterisk-users] PRI dropouts

 

Recently we cut over to using asterisk (trixbox 1.1.1) for our production
system.

 

We are using a TE110P digium card (Primary rate) with a Telstra onramp 10.

 

Sometimes when people call, on their end it doesn't seem to connect. On our
end, we get caller id, it passes ok to the sip phone but then no-one is
there.

 

Anyone have any similar problems and worked out how to solve it ?

 

Thanks.

 

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