[Asterisk-Users] Interfacing T100P with Definity PBX

Andrew Kohlsmith akohlsmith-asterisk at benshaw.com
Sat Nov 27 07:13:33 MST 2004


On November 27, 2004 06:46 am, Ashish Shinde wrote:
>    I have two t100p cards installed. One card connected to the PSTN,
> the other card is hooked to the Definity PBX with a T1 cross over
> cable. The card connected to the PSTN works fine.
>    The problem is with the card hooked up to the PBX. The light behind
> the card is green, but when I dial from this card I get an error. Its
> says it could start the D-Channel. Could someone help me out with this
> problem

> span=1,0,0,esf,b8zs

If span 1 is the telco you want sync to be '1' not 0 -- you want the span to 
take clock from the PSTN.  span 2 with sync '0' is right 99% of the time -- 
most PBXes and KSUs don't have an option to be the sync source so they'll be 
trying to sync from *, which should have it span sync set to '0' to achieve 
this.

> ;; The problematic card
> context = default
> switchtype = national
> overlapdial = yes
> signalling = pri_net
> group = 2
> channel => 25-47

Just out of curiosity, does your PBX allow overlap dial?  I'd try setting it 
to 'no' and trying.

Other than that, it appears that this setup is identical to mine with my 
Norstar MICS.  Since you are getting errors about the D channel not being up 
I would imagine you have a configuration error on your PBX side, as this end 
certainly looks fine.  Does * say that span 1's D channel is up?

-A.



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