[asterisk-users] not sure what to change to point the timing to the at&t circuits?

[Jonathan Thurman]

On Thu, Jul 8, 2010 at 8:30 AM, Jared Terrell <jared.terrell at mcc.edu> wrote:
> # Span 1
> span=1,1,0,esf,b8zs
> bchan=1-23
> dchan=24
> echocanceller=mg2,1-23
> # Span 2
> span=2,2,0,esf,b8zs
> bchan=25-47
> dchan=48
> echocanceller=mg2,25-47
> # Span 3
> span=3,3,0,esf,b8zs
> bchan=49-71
> dchan=72
> echocanceller=mg2,49-71
> # Span 4
> span=4,4,0,esf,b8zs
> bchan=73-95
> dchan=96
> echocanceller=mg2,73-95
> # Global
> loadzone        = us
> defaultzone     = us

You have it configured correctly.  Here is an quote from
http://www.voip-info.org/wiki/view/Asterisk+PRI

# span=<span num>,<timing source>,<line build out
(LBO)>,<framing>,<coding>[,yellow]

The timing sources are 1-4 (in your example), which is the priority of
the remote clock.  A value of zero means that the Asterisk server is
the master (i.e. to a channel bank you are acting as the CO).  Only
one timing source is used for all spans.


> Span 1: TE2/0/1 "T2XXP (PCI) Card 0 Span 1" (MASTER) B8ZS/ESF ClockSource
This is your primary timing source (the far end is used as a reference
clock for ALL spans)

> Span 2: TE2/0/2 "T2XXP (PCI) Card 0 Span 2" B8ZS/ESF
>        Timing slips: 38526
This is your secondary timing source.  Looks like maybe something
wrong with the T1?  Try replacing the cable, that has bit me before.
If that doesn't work call AT&T and have them test that circuit.

> Span 3: TE2/1/1 "T2XXP (PCI) Card 1 Span 1" B8ZS/ESF
Third timing choice, looks clean.

> Span 4: TE2/1/2 "T2XXP (PCI) Card 1 Span 2" B8ZS/ESF
Forth timing choice, looks clean.

Hope that helps.

-Jonathan