T1 Pre-Alerting delay

[Skolnick]

Hey all,

I recently installed an IP Office with a PRI line for a client. Everything is working fine, except for the fact that incoming calls will last forever to get a ring, so the caller experiences long periods of silence. So I checked the SSA and for the first 15 seconds of silence I see the status of "Pre-Alerting" for the Call Status. Is there any way to reduce this pre-alerting time? Maybe one of the timers from the PRI line config? Any help will be appreciated.

 

[Skolnick]

Anyone? Please?

 

[NYSTECH]

Is it an IP500?? What version of software??

Who is provider?
How do you have the PRI set up? Switch type, provider etc..

need a little more info if you ask for help

 

[Skolnick]

Sorry, should've given everything on the first post. Thanks for the reply. Well, it's an IPO 500v2. I'm down in the caribbean our provider is Claro Codetel. The config I'm using is:

Line SubType: T1
Framing: ESF
Zero Supression: AMI ZCS
Line signaling: CPE
Incoming Routing Digits: 0
Channel Type: E&M-Tie
Incoming/Outgoing Trunk Type: Wink-Start
Direction: Bothway

With this config I can place and receive calls. But like I said I have 15 seconds of silence and my SSA says the status of the call is "Pre-alerting", afterwards it passes to "Seized" with a long tone sound and then to my AutoAttendant.

 

[NYSTECH]

I am not familar with caribbean providers but, from what your describing that isn't a PRI but a T1 Ckt. and usally at least in US if you are using AMI the framing would be D4.

A PRI is usually B8ZS ESF at least in US..

But like I said I am not familar with Caribbean telco set up

 

[Skolnick]

My bad, the framing IS D4, but I was playing around with ESF and B8ZS, in case my provider had given me some wrong info, and I hadn't returned it to the functional config. I said PRI because the line menu says PRI 24 line, but yea, it is a T1, which is why I used the Line Subtype T1.

 

[Skolnick]

Finally got the delay reduced, went to the timers tab in the Channel Options and modified the First Incoming Digit de 1000, instead of 15000. Hope this helps someone else.