[Asterisk-Users] Non-PRI T1

[Jerry Jones]

Any type of circuit available as an analog line is also available  
over a T1. It just minimizes the amount of copper required to deliver  
service.

You must look at you original order from your telephone company to  
determine the type of circuits they are delivering. They may be POTS  
1FB in which case there are no digitis. They may be E&M with none. Or  
they may be DID which would be sending digits. Although only the  
order would identify the exact number of digits. If they are DID then  
you were probably assignen at least one block of 20 numbers to be  
delivered on the circuit.

Of course then you need to know how many trunks/circuits you have  
active on the T1. For outgoing calls you control which ones to use  
for any given call. for incoming they may be divided into multiple  
trunk groups with different numbers coming in on different channels.

If they are non DID circuits then they should hit the s exten in  
whatever context you have defined for them in zapata.conf on an  
incoming call.

Good luck


On Jan 6, 2006, at 6:02 PM, O'Connor, Jonathan wrote:

> 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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