[Asterisk-Users] 13 sec. delay what is causing it?

[Lyle Giese]

Eric,
I am very aware of what you are talking about.  However I am comparing two
different computers connected to the exact same PSTN line in the US, using
the exact same Digium TDM card.  Huge difference in cpu's and bus speeds.  *
still needs to get the data from the TDM or X100P card and parse it
internally before ringing the pbx extensions.

Lyle

----- Original Message ----- 
From: "Eric Wieling" <eric at fnords.org>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<asterisk-users at lists.digium.com>
Sent: Saturday, September 18, 2004 5:44 PM
Subject: Re: [Asterisk-Users] 13 sec. delay what is causing it?


> On Sat, 2004-09-18 at 17:21, Lyle Giese wrote:
> > Perfectly normal.  On analog lines, the caller id is set between the 1st
and
> > 2nd rings.  So Asterisk has to wait for the caller id and depending on
the
> > speed of the computer that hosts Asterisk, 13 seconds is exactly right.
A
> > normal ring cycle is 2 secs ring on 4 seconds of silence, so the 2nd
ring is
> > 12 seconds into the call.
> >
> > I just put in a nice Asus motherboard with a 500 mhz front side bus, 2.4
gig
> > AMD processor & 512 meg ram for the pbx here and I get the first ring on
the
> > extensions at the same time as the second ring on the incoming ring.  I
was
> > testing and trialing on a celeron 1.4ghz machine with 256 meg ram and
the
> > video borrowed some of the system ram.  The analog extensions were not
> > ringing until the third incoming ring on that slow machine.
>
> System speed has VERY little to do with this.  If Asterisk expects to
> get Caller*ID and the PSTN line does not have Caller*ID service on the
> line. Asterisk has to wait until the beginning of the second ring before
> giving up on getting any Caller*ID.  If your PSTN line doesn't have
> Caller*ID service then tell Asterisk not to expect Caller*ID then the
> delay will be MUCH less.  This is covered over and over and over again
> in the mailing list archives.
>
> -- 
>           Eric Wieling * BTEL Consulting * 504-899-1387 x2111
> "In a related story, the IRS has recently ruled that the cost of Windows
> upgrades can NOT be deducted as a gambling loss."
>
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