[Asterisk-Users] Non-PRI T1

O'Connor, Jonathan Jonathan.OConnor at inoveris.com
Fri Jan 6 17:02:56 MST 2006


You can use a normal T1.  I have one between an Asterisk box and a
Vodavi switch.

I use 10 channels between them with E&M signalling.  Zaptel.conf:
loadzone        = us
defaultzone     = us
span=1,1,0,esf,b8zs
#bchan=1-10 # set this to 1-15,17-31 for E1
#dchan=24 # set this to 16 for E1
e&m=1-10
#fxsgs=1-10

Then Zapata.conf has:
immediate=no
overlapdial=yes
switchtype=national
signalling=em_w
emdigitwait=1000
channel=>1-10


You have to be careful of timing and such, because basically its really
no fancier then a set of lines that happen to be on a T1.  It opens and
line and literally sends 4 DTMF codes to the server to tell it where its
calling.  For all intents and purposes it could be a bundle of 10 normal
phone lines.


It is our only site using this method because they wanted a fortune for
a PRI card.  Our Avaya and Nortel PBXs all talk to their Asterisk PBXs
using PRI, MUCH easier.  The basic T1 signalling and EM Wink is truly
horrid to work with when the PBX is as dumb as a box of rocks like our
Vodavi system.

-Jonathan
 
Jonathan O'Connor
Senior System Administrator
Inoveris LLC
Direct Line (614) 791-3742
Fax (614) 791-3748
Helpdesk 866-456-1566
 
 
 

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Rusty Shackleford
> Sent: Friday, January 06, 2006 6:54 PM
> To: 'Asterisk Users Mailing List - Non-Commercial Discussion'
> Subject: RE: [Asterisk-Users] Non-PRI T1
> 
> > -----Original Message-----
> > From: asterisk-users-bounces at lists.digium.com
> > [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Mark 
> > Phillips
> > Sent: Friday, January 06, 2006 3:39 PM
> > To: Asterisk Users Mailing List - Non-Commercial Discussion
> > Subject: Re: [Asterisk-Users] Non-PRI T1
> > 
> > 
> > Are they configured for inbound calls? If so how?
> > 
> > Usually the telco sends the last 4 digits of the called 
> phone number 
> > down the line.
> 
> Uhm...., don't you need PRI signalling for that?
> 
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