ISDN PRI incoming calls problem

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Sep 6th, 2007
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Guys,


I am having a bit of a trouble here, i am able to make out going calls for all the extensions, but on an inbound call from out side on any of the PRI numbers, i get a dial tone after dialing, after which if i dial the extension number, the extension rings other wise not can any one please help me out to resolve this issue i am also attaching the config file.



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Paolo Bevilacqua Thu, 09/06/2007 - 10:02
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Your DP 1 is not matching the called number:


dial-peer voice 1 pots

incoming called-number 1..


Change to what you see in "debug isdn q931" and the call will accepted.


I don't know if you have DID and if so what "dialplan-pattern" is needed under telephony-service. That is also needed to ring the extensions directly from outside.

aamirdhedhi Thu, 09/06/2007 - 10:11
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thanks for ur reply i had tried using 1.. in dial peer but it did not work


i also configured dialplan patter

the DID range is from 8020100 to 8020299




Paolo Bevilacqua Thu, 09/06/2007 - 10:36
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So configure incoming called-number 8020...

You can remove the port from the incoming DP, it is not used.


and "dialplan-pattern 1 8020... extension-length 3"


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Paolo Bevilacqua Thu, 09/06/2007 - 23:38
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Then just use .. for incoming called-number in the DP that has direct-inward-dial. Or take debugs isdn q931 with term mon and place the correct number.

anderson-david Fri, 09/07/2007 - 00:16
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Hi,

put the cmd "direct-inward-dial" under your POTS dial peers this should stop the secondary dial tone, also how many digits is your service provider presenting BT present 6 by default so unless you have asked for only 3 to be presented you will need a translation pattern to change the incoming 6 digits to 3.


I hope this helps



aamirdhedhi Fri, 09/07/2007 - 05:17
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Dear Anderson


the number provided by the telco is 8020222 the range i have been given is 8020100 to 299.i hav configrued the extensions starting from 100 to 135 i have arleady put direct-inward-dial. can u tell me how to do the translation.


Cheers

aamir

Paolo Bevilacqua Fri, 09/07/2007 - 05:36
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The command under telephony-service is:


dialplan-pattern 1 8020... extension-len 3


This assumes telco is sending 7 digits for called number thing that you can verify with "term mon" and "debug isdn q931".

aamirdhedhi Fri, 09/07/2007 - 23:37
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Dear the following is the result of debug isdn q931


Sending Complete

Bearer Capability i = 0x9090A3

Standard = CCITT

Transfer Capability = 3.1kHz Audio

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98388

Exclusive, Channel 8

Progress Ind i = 0x8483 - Origination address is non-ISDN

Calling Party Number i = 0x2183, '048850447'

Plan:ISDN, Type:National

Called Party Number i = 0x81, '0122'

Plan:ISDN, Type:Unknown

Sep 8 07:20:15.386: ISDN Se0/0/1:15 Q931: TX -> CALL_PROC pd = 8 callref = 0x9

D52

Channel ID i = 0xA98388

Exclusive, Channel 8

Sep 8 07:20:15.386: ISDN Se0/0/1:15 Q931: TX -> CONNECT pd = 8 callref = 0x9D5

2

Sep 8 07:20:15.846: ISDN Se0/0/1:15 Q931: RX <- CONNECT_ACK pd = 8 callref = 0

x1D52

Sep 8 07:20:15.846: ISDN Se0/0/1:15 **ERROR**: call_progress: DEV_CONNECTED VOI

CE ERROR: Bearer capability not available(0x3A): b channel 7 call id 0xF8



can u please go throug and help me


Paolo Bevilacqua Sat, 09/08/2007 - 01:50
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Telco is passing four digits. Use

"incoming called-number 0..." and

"dialplan-pattern 1 0... extension-length 3".



Paolo Bevilacqua Sun, 09/09/2007 - 08:30
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Thanks for the nice rating and good luck!

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