CME QCT toll does not recognize T1/E1 card

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Mar 26th, 2008
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When I use the "Auto detec hardware" option in the 3.1 QCT tool, it finds the Unity Express & 4 port FXO but it does not detect the T1/E1 card. The router is a 2821 CME 4.0 and CUE 3.0. Is this normal or should it detect it?

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paolo bevilacqua Wed, 03/26/2008 - 16:51
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Hello, a friendly advice, for professional results and more importantly to understand what you're doing, forget qct and gui tools and only use cli to configure CME. In particular the T1/E1 card only requires 4-5 commands that I can summarize here for you if you tell us where you are and which telco service you got.

sean.reardon Wed, 03/26/2008 - 17:00
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In the US. It's an AT&T T-1. ISDN PRI 23 channels. Here is what shows up in the CLI output form the QCT tool


card type t1 0

card type t1 0 0

!

isdn switch-type primary-4ess

!

controller t1 0/0/0

default mode

line b8zs

framing esf

clock source line

pri-group timeslots 1-23

no shutdown


Thanks


Sean

paolo bevilacqua Wed, 03/26/2008 - 17:31
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A "corrected" config would be:


card type t1 0


network-clock-participate wic 0

network-clock-select 1 t1 0/0/0


isdn switch-type primary-5ess


controller t1 0/0/0

pri-group timeslots 1-23

no shutdown


dial-peer voice 100 pots

desc ld calls

destination-pattern 91[2-9][0-8][0-9][2-9]......

port 0/0/0:23

forward-digits 11


dial-peer voice 101 pots

desc lata calls

destination-pattern 9[2-9]......

forward-digits 7

port 0/0/0:23


dial-peer voice 102 pots

desc international

destination-pattern 9011......T

port 0/0/0:23

prefix 011



dial-peer voice 103 pots

desc *11

destination-pattern 9[2469]11

port 0/0/0:23

forward-digits 3


dial-peer voice 911 pots

destination-pattern 911

port 0/0/0:23

forward-digits 3


The config for DP is a bit verbose but will allow you to:

1- prevent misdialed calls by strict nanp checking

2- count how many calls are done and where with "show dial-peer voice"

3- enforce limitations based on calling phone for what is callable and what is not.


You will find that CME is a very powerful PBX but it takes some time to master it. it's time well spent anyway.


Hope this helps, please rate post if it does!

sean.reardon Thu, 03/27/2008 - 09:46
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Paulo,


Great advice. Works like a champ Calls now ring into the phones. One more question: Calls come into the system fine but when I dail 91(xxx)xxx-xxxx I am getting a busy signal. Does the config you provided handle outcalling or is that something I need to fiddle with in the user parameters?

paolo bevilacqua Thu, 03/27/2008 - 10:06
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Well the idea was a to give you a config for outcalling ...

can you take "debug isdn q931" with "term mon" when you make an outgoing call ?

sean.reardon Fri, 03/28/2008 - 09:38
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Paulo/ anyone,


Here is the output from the ISDN Debug Q931. I tried to dial a 10 digit #/ As you see the error is: Cause i = 0x83E020 - Mandatory information element missing. Any suggestions?


debug isdn q931 is ON.

Singapore#

Mar 28 12:31:36.999: ISDN Se0/0/0:23 Q931: Applying typeplan for sw

0x2 0x1, Calling num 80001

Mar 28 12:31:37.003: ISDN Se0/0/0:23 Q931: Applying typeplan for sw

0x2 0x1, Called num 19788771761

Mar 28 12:31:37.003: ISDN Se0/0/0:23 Q931: TX -> SETUP pd = 8 call

Bearer Capability i = 0x8090A2

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98397

Exclusive, Channel 23

Calling Party Number i = 0x2180, '80001'

Plan:ISDN, Type:National

Called Party Number i = 0xA1, '19788771761'

Plan:ISDN, Type:National

Mar 28 12:31:37.047: ISDN Se0/0/0:23 Q931: RX <- RELEASE_COMP pd =

0x8087

Cause i = 0x83E020 - Mandatory information element missing

paolo bevilacqua Fri, 03/28/2008 - 15:26
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Hi, somewhere in the config, do have a command that sets "ISDN national" ? If so, please remove it. Also please add:


int serial 0/0/0:23

isdn sending-complete


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