[Asterisk-Users] PRI timing problems: Fax & Voice

[Greg Boehnlein]

On Wed, 4 May 2005, Andrew Kohlsmith wrote:

> > When the span was "0", I NEVER got that message. I haven't heard any
> > complaints from the other office mates that use the PRI for voice, but the
> > error just bothers me.
> >
> > What is the real difference between "0" and "1" on the span timing?
> 
> all that the clock span means is what span * synchronizes to.
> 
> clock of 0 means do not try to synchronize to the clock on this span
> 1 means this span is my primary clock sync source
> 2 means that if the span with '1' is down, use this one
> 3 means if the spans with 1 and 2 are down, use this one

This is very confusing. Most clocking language in the industry refers to 
either "Internal" or "Recovered" clocking. Basically, the span can either 
use it's own clock, or attempt to pull it from the line.

Furthermore, zttool appears to be broken and no matter what the setting of 
the span (0,1,2,3) it allways reports "Internally clocked".

I actually opened a bug report on this today, after talking to Digium 
technical support, who was very apathetic about it. Basically, the Tech 
said "It's a known issue w/ zttool" and that if I wanted to report it to 
the bug tracker, perhaps someone in the community would fix it.

So I opened http://bugs.digium.com/view.php?id=4186

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