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

Lyle Giese lyle at lcrcomputer.net
Wed Sep 8 08:19:19 MST 2004


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
> Website Managers
> Ph:  +61 2 9345 4395                        adam at websitemanagers.com.au
> Fax: +61 2 9345 4396                        www.websitemanagers.com.au
>
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