[asterisk-users] Astribank loop current adjustment

[Tzafrir Cohen]

On Sat, Oct 25, 2008 at 11:53:21AM +0200, Tzafrir Cohen wrote:
> On Thu, Oct 23, 2008 at 02:50:05PM +0200, Udo Schacht-Wiegand wrote:
> > For a door opener on an Astribank FXS port we need a loop current of 24.5mA .
> > It does not function with the Astribank now, the dialtone becomes quiet 
> > immediately after pressing the button on that device.
> > I've seen a limit of 23mA in the zaptel source.
> > Is it possible to change the loop current of the Astribank somehow?
> 
> A phone that is on-hook is supposed to be an "open circuit" and ideally
> not draw any current. In the real world this doesn't really happen. The
> Astribank detects this by setting two limits. Anything above the high
> limit is considered "closed circuit" (off-hook). Anything below the
> lower limit is considered "open circuit" (on-hook). 

This (and what followed) was a good answer to the wrong question (as he
asked about the current when the line os off-hook). Luckily Udo insisted 
and was later answered in private mail.

Anyway, such questions should normally go to support at xorcom.com .

-- 
               Tzafrir Cohen
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http://www.xorcom.com  iax:guest at local.xorcom.com/tzafrir