[EMAIL PROTECTED] wrote:
> It does default to 25hz, but switching it to 20hz didn't make
> a difference. 

It was a long shot. Still. 20Hz is correct, so might as well leave it
that way
 
> I'm an absolute novice when it comes to the electrical side
> of POTS. How should I be measuring the voltage? In parallel
> with a handset? 

No need to have anyting on the end of the line. Connect a voltmeter to
tip and ring (doesn't matter which polarity you connect - one probe to
each contact), and go from there. The voltage will be there regardless
of whether any phones are connected to the circuit. If you cannot detect
any voltage (or it's well below 70VAC), that'll explain why the sets
won't ring.

Are you plugging directly into the FXS port on the Sipura? No cabling or
anything involved?

Jim.



> On Tue, 19 Jul 2005, Jim Van Meggelen wrote:
> 
>> Simon P. Ditner wrote:
>>> Is there some trick I'm missing that's required to get the
>>> Sipura 1001 FXS to ring a handset? 
>>> 
>>> - I reset the unit to factory defaults
>>> - I put in the asterisk connection settings, and it registers
>>> - I call it from another phone, and see it come through
>>> asterisk 
>>> - web interface of the sipura reports that the line is
>>> ringing 
>>> - No handset I plug into the bugger will ring, though the
>>> call is there if I pick it up
>> 
>> Change the ringing frequency from 25Hz to 20Hz. Some of the
>> Sipuras default to 25Hz, but in NA the norm is 20Hz. It
>> generally shouldn't make a difference, but on some phones
>> (especially older ones) it might. 
>> 
>> Also, check with a volt meter that you're getting ringing
>> voltage (roughly 70-90VAC). Possibly the ring generator in
>> the unit is blown. 
>> 
>> Jim.
>> 
>> 
>> --
>> Jim Van Meggelen
>> [EMAIL PROTECTED]
>> http://www.oreillynet.com/pub/au/2177


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