[VoIP] Correct Way To Connect X100P To Step By Step Exchange?

[Brent Jones]

Hi. I have got an Asterisk box up and running. Now I want to be able
to hook up my X100P to a Step by Step Pabx. 

I'll be connecting the FXO to an extension on the PABX.  
It is a step by step type that uses uniselectors to make the connections between extensions.

But at first I am trying to get it working on a model Step by Step unit that uses 
subcribers uniselectors connected to a group then final selector.

I have being trying to
connect to the  model step by step without success. I have loaded the
pulse dial patches needed. But what happens is when I dial, the
subscribers line uniselector seems to hunt and step to the pulses. 
Some of the last pulses seem to get through to the group selector and
you see it moving verticaly.

I have played around with the timings in zaptel.h but it doesn't seem
to improve things.

Can someone please tell me what sort of settings they found to work
for the timings. Also can someone please tell what settings they use
for zaptel.conf and zapta.conf files.  Even a diagram of how you wired
the FXO card to your PABX.

Also are X100P cards polarity sensitive with relationship to the line voltages ie
does it matter which pin gets A or B leg .
Do I need to put a 'w' in the dialing string before the first digit to let the subscriber
uniselector hunt.

Does the FXO pulse dialing patch return the loop back to the exchange during dialing
between digits?

Any ideas welcome.

Thanks
Brent Jones