[Asterisk-Users] * dialing before line is open?

[Dave Weis]

On Fri, 9 Jan 2004, john lawler wrote:
> I've had a sporadic problem recently with one of my users on our POTS 
> line.  About 1/3 of the time he dials a number (usually from a speeddial 
> on his phone, I think), he'll get some phone company message (from the 
> outside) about how the call could not be completed as dialed or 
> something like that.

I had a similar problem with a client. I hooked up a butt set to the line 
and listened and only heard 4-5 digits being sent. The problem ended up 
being high loop current on the line. It should be around 20-25 milliamps, 
but this one was 45. High loop current can cause a variety of strange 
problems. There is more information on it at www.sandman.com if you want 
to look. The easiest way to fix it is to put a 500 or 1k ohm 1 watt 
resistor in series with both tip and ring. 

dave

-- 
Dave Weis             "I believe there are more instances of the abridgment
djweis at sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison