[Asterisk-Users] Excessive Asterisk delay to answer on ZAP inboundcall

[Tom Vile]

fax detection and callerid will slow this down.  I beleive it takes 2
seconds or so for callerid to be picked up.

On 4/26/06, kevin ling <kevin.ling at amphenol.com.tw> wrote:
>
>
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Giorgio
> Incantalupo
> Sent: Wednesday, April 26, 2006 4:59 PM
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] Excessive Asterisk delay to answer on ZAP
> inboundcall
>
> Hi,
> I have an asterisk 1.2.1 on a Debian Sarge distro with *three* TDM400P
> (12 fxo ports). I noticed Asterisk is slow to answer inbound calls so I
> connected an analog phone in parallel to make a test:
>
>                   __________Asterisk fxo
> ---- line -----|
>                  -----------------Analog phone
>
> The analog phone rings immediately when calling, while asterisk shows the
> message "Starting simple switch on zap..."  after the first ring and
> executes the old extension script after the second ring (for example a NoOp
> instruction).
>
> Why does Asterisk wait for these two rings? What is it doing meanwhile?
> Is it possible to shorten this interval to have an immediate response?
>
> TIA
>
> Giorgio Incantalupo
>
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--
Tom Vile
Baldwin Technology Solutions, Inc
Consulting - Web Design - VoIP Telephony
www.baldwintechsolutions.com
Phone: 518-631-2855 x205
Fax:     518-631-2856