[Asterisk-Users] Caller id and the number of rings

[Rich Adamson]

Think there has been sufficient experience in the last few months that suggest
the system motherboard construction (eg, interrupt latency, pci latency, etc) 
has been a much later issue then processor speed. Sure wish we could truly
get to the bottom of this.

------------------------
> Just a comment here.
> 
> I built an * pbx on a Celeron 1.4ghz machine.  Got all the dialplan and such
> working , then built a new server with an AMD 2.4g processor with a 500mhz
> front side buss. With the same Digium TDM cards and all analog incoming and
> outgoing.
> 
> The celeron was not ringing out until the third incoming ring.  The new
> server starts ringing inside just before the second ring hits the incoming
> analog port.  Same version of * and same version of Suse Linux, better
> processer, better buss speed, and now a serial ata hard drive.  So the speed
> of the server does also have some effect.
> 
> Lyle
> 
> ----- Original Message -----
> From: "Adam Goryachev" <mailinglists at websitemanagers.com.au>
> To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> <asterisk-users at lists.digium.com>
> Sent: Wednesday, September 08, 2004 5:30 AM
> Subject: Re: [Asterisk-Users] Caller id and the number of rings
> 
> 
> > On Wed, 2004-09-08 at 13:43, HengWee Chin wrote:
> > > Hi all,
> > >
> > >    I have the following setup
> > >    PSTN -> ASTERISK -> IVR (using dialogic card)
> > >
> > > 1) Caller id information is presented to asterisk during the first and
> > > second ring.
> > > 2) Hence, Asterisk waits for 2 rings before pickup the call and
> forwarding
> > > to the appropriate FXS port.
> > > 3) The IVR application also waits for 2 rings before picking up the call
> to
> > > get the caller id.
> > > 4) Hence any caller calling to the IVR will have to wait for 4 rings
> before
> > > he is serviced. This is too long.
> > > 5) Anyone have any idea how can I reduced the number of rings and still
> have
> > > caller id available to IVR?
> >
> > AFAIK, if asterisk has already waited 2 rings for the callerid, then why
> > would the IVR need to wait as well? You shouldn't need to wait in the
> > dialplan as well. Try removing that, and you should still have callerid.
> >
> > > 6) If I were to switch PRI ISDN, would I still have the same problem?
> >
> > Yup, we use an E1, and can answer immediately (no rings at all) and
> > still have callerid. This is ultimately the best solution, regardless of
> > your application. The only time you don't use it, is if you can't afford
> > it. AFAICT, the second best solution is to use chan_capi/zaphfc with
> > supported BRI cards.
> >
> > Just my 0.02c worth
> >
> > Regards,
> > Adam
> >
> > --
> >  --
> > Adam Goryachev