MGCP - ISDN

Unanswered Question
Jun 23rd, 2009
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Hi,


I have this lab scenario


Router A has a phone with DN 1002 registered to CCM7 and is also a MGCP gateway. The MGCP gateway is configured with inbound 4 significant digits.



Router A config:


controller T1 0/0/0

cablelength long 0db

pri-group timeslots 1-24 service mgcp


interface Serial0/0/0:23

no ip address

encapsulation hdlc

isdn switch-type primary-ni


ccm-manager switchback immediate

ccm-manager redundant-host 10.10.210.10

ccm-manager mgcp

!

mgcp

mgcp call-agent 10.10.210.11 service-type mgcp version 0.1

mgcp dtmf-relay voip codec all mode out-of-band

mgcp fax t38 ecm

mgcp bind control source-interface Loopback0

mgcp bind media source-interface Loopback0

!

mgcp profile default

!

isdn incoming-voice voice

isdn bind-l3 ccm-manager

no cdp enable




PSTN Router config:


ephone-dn 1 octo-line

number 911

label Emergency........911-999

description PSTN Phone



!

ephone-dn 3

number 6178632683 no-reg primary

label test +1-617-863-2683

!

dial-peer voice 102 pots

destination-pattern 6178631...

port 0/3/1:23 <------ back to back connection to Router A

forward-digits 10



I can call the PSTN ephone DN 6178632683 from Router A's DN 1002.

So, I presume the ISDN is working one way ,at least.


However, calling DN 1002 from the PSTN by dialing '6178631002' produces a reorder tone and the ISDN error message:


Unallocated/unassigned number


Debug shows that there is a match with the dial peer :


dial-peer voice 102 pots

destination-pattern 6178631...


Translation patterns are working and there is also a route pattern of 617863.XXXX - PreDot


I am not sure what is wrong, any help appreciated.


Thanks,

Paul




PSTN# debug isdn q931


Jun 24 00:48:21.551: ISDN Se0/3/1:23 Q931: Applying typeplan for sw-type 0xD is 0x0 0x0, Calling num 911

Jun 24 00:48:21.551: ISDN Se0/3/1:23 Q931: Sending SETUP callref = 0x0095 callID = 0x8016 switch = primary-ni interface = Network

Jun 24 00:48:21.551: ISDN Se0/3/1:23 Q931: TX -> SETUP pd = 8 callref = 0x0095

Bearer Capability i = 0x8090A2

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98381

Exclusive, Channel 1

Progress Ind i = 0x8583 - Origination address is non-ISDN

Calling Party Number i = 0x0080, '911'

Plan:Unknown, Type:Unknown

Called Party Number i = 0xA1, '6178631002'

Plan:ISDN, Type:National

Jun 24 00:48:21.571: ISDN Se0/3/1:23 Q931: RX <- CALL_PROC pd = 8 callref = 0x8095

Channel ID i = 0xA98381

Exclusive, Channel 1

Jun 24 00:48:21.575: ISDN Se0/3/1:23 Q931: RX <- DISCONNECT pd = 8 callref = 0x8095

Cause i = 0x8081 - Unallocated/unassigned number

Jun 24 00:48:21.579: ISDN Se0/3/1:23 Q931: TX -> RELEASE pd = 8 callref = 0x0095

Jun 24 00:48:21.587: ISDN Se0/3/1:23 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x8095

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Jaime Valencia Tue, 06/23/2009 - 21:05
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You set the significant digits, but what about the inbound CSS? can it reach the phone?


HTH


java


if this helps, please rate

PAUL CHEN Tue, 06/23/2009 - 21:35
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Hi,


There are no CSS configured in CCM .


Is CSS needed at all ?


Thanks

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