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Community Member

Delay in Call Setup

I am having issue with one of my costumer getting 12 to 15 seconds delay before call setup. Whenever he dials a number it takes 12 to 15 sec delay before dialing the digits. Costumer is using Analog PBX connected to the Cisco IAD 2431. The VOIP dial peers are as follow,

dial-peer voice 100 voip

application session

destination-pattern .T

translate-outgoing calling 2431

voice-class codec 1

session protocol sipv2

session target ipv4:x.x.x.x

dtmf-relay rtp-nte

playout-delay maximum 140

fax rate disable

no vad

!

dial-peer voice 101 voip

application session

destination-pattern .T

translate-outgoing calling 2431

voice-class codec 1

session protocol sipv2

session target ipv4:x.x.x.x

dtmf-relay rtp-nte

playout-delay maximum 140

fax rate disable

no vad

!

The output show Ver is

usfutaba#show ver

Cisco IOS Software, 2400 Software (C2400-IS-M), Version 12.3(7)T6, RELEASE SOFTWARE (fc2)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2004 by Cisco Systems, Inc.

Compiled Fri 29-Oct-04 14:47 by eaarmas

ROM: System Bootstrap, Version 12.3(7r)T2, RELEASE SOFTWARE (fc1)

usfutaba uptime is 13 weeks, 2 days, 56 minutes

System returned to ROM by power-on

System image file is "flash:c2430-is-mz.123-7.T6.bin"

Cisco IAD2431 (R527x) processor (revision 4.0) with 123904K/7168K bytes of memory.

Processor board ID FHK0913F3G3

R527x CPU at 225MHz, Implementation 40, Rev 3.1

1 On-Board Eight FXS Analog Voice Module

1 FastEthernet interface

1 Serial interface

1 Channelized T1/PRI port

DRAM configuration is 64 bits wide with parity disabled.

63K bytes of non-volatile configuration memory.

System fpga version is 250025

System readonly fpga version is 250025

Option for system fpga is 'system'.

62720K bytes of ATA System CompactFlash (Read/Write)

Configuration register is 0x2102

Please advice if further info needed.

Thanks in advance..

6 REPLIES
Community Member

Re: Delay in Call Setup

Hi Rashid,

When you get an answer, i'd also like to know please.

David

Re: Delay in Call Setup

To test, try having your customer dial # at the end of the number. If this speeds up the dialing, even if the call fails, then you'll know it is the variable length destination-patterns you are using.

.T means wait until the inter-digit timeout occurs or a # is dialed, whichever comes first. This time is about 12 seconds, if I recall correctly. I suspect you'll need to refine your destination-patterns by making them more specific.

Let me know if this helps by rating the post.

Michael

Community Member

Re: Delay in Call Setup

Michael,

Thanks for the reply, I was out from office on 3rd and 4th that's why replying you late.

I did try it earlier and got fast busy when dialing out without delay. So you are totally right the problem is with destination pattern,I tried following options

destination-pattern .0%

destination-pattern .1%

It worked for delay but costumer can't able to dial out. Can you give me little more specifics of what my destination-pattern is suppose to be in order to work it properly.

Rashid Shakil

Community Member

Re: Delay in Call Setup

As Michael said, you need to spesify your destination patterns so there is a more exact match.

I dont know how your numbering plan is, but if you use 8 digits for national calls

destination-pattern [1-9]....... would be a exact match (or ........)

for internal number series (example 4000-4999)

destination-pattern 4... would be a exact match

For int calls with 00 prefiks

destination-pattern 00.T would be an exact match.

If you have some national numbers based on 4 or 5 digits or something else you need to spesify them also.

Remember to add a dialpeer for every outgoing interface you have.

BR,

Runar

Community Member

Re: Delay in Call Setup

Thanks for the Info..I will change the destination-pattern with the exact match and let you know.

Community Member

Re: Delay in Call Setup

hi again, i need to correct myself a bit,

for the internal number you dont need a destination-patter of course, as they rely "inside" the ccme/ccm.

I was thinking of voicemail etc, stuff like that.

/runar

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