PRI Outbound Problem, BELL Canada

Unanswered Question
Feb 4th, 2010

Hi all,

I manage a Voice Gateway (2821)with a T1 Controller which is currently located in vancouver canada. I configured the Gateway and so far all inbound calls work very fine. The problem occurs at outbound calls. I try to set up a connection to an international number but all i get is two different operator messages. The international call is destined for switzerland which has the international precall 01141 and the hoster which requires a 9 for operator selector. So i try to give Bell the number in the following format:

901141XXXXXXXXX "The call you made cannot be connected as dialed..."

91141XXXXXXXXX "You do not need a long distance access code for the number you've dialed..."

the q931 debug says the following for these two options:

000275: .Feb  4 22:07:53.941: ISDN Se0/2/0:23 Q931: pak_private_number: Invalid type/plan 0x0 0x1 may be overriden; sw-type 3
000276: .Feb  4 22:07:53.941: ISDN Se0/2/0:23 Q931: Applying typeplan for sw-type 0x3 is 0x2 0x1, Called num 901141XXXXXXXXX
000277: .Feb  4 22:07:53.945: ISDN Se0/2/0:23 Q931: TX -> SETUP pd = 8  callref = 0x0086
        Sending Complete
        Bearer Capability i = 0x8090A2
                Standard = CCITT
                Transfer Capability = Speech
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA18397
                Preferred, Channel 23
        Calling Party Number i = 0x2181, '778328XXXX'
                Plan:ISDN, Type:National
        Called Party Number i = 0xA1, '901141XXXXXXXXX'
                Plan:ISDN, Type:National
000278: .Feb  4 22:07:54.053: ISDN Se0/2/0:23 Q931: RX <- CALL_PROC pd = 8  callref = 0x8086
        Channel ID i = 0xA98397
                Exclusive, Channel 23
000279: .Feb  4 22:07:54.053: ISDN Se0/2/0:23 Q931: RX <- PROGRESS pd = 8  callref = 0x8086
        Cause i = 0x8081 - Unallocated/unassigned number
        Progress Ind i = 0x8088 - In-band info or appropriate now available

and:

000300: .Feb  4 22:08:28.989: ISDN Se0/2/0:23 Q931: pak_private_number: Invalid type/plan 0x0 0x1 may be overriden; sw-type 3
000301: .Feb  4 22:08:28.993: ISDN Se0/2/0:23 Q931: Applying typeplan for sw-type 0x3 is 0x2 0x1, Called num 91141XXXXXXXXX
000302: .Feb  4 22:08:28.993: ISDN Se0/2/0:23 Q931: TX -> SETUP pd = 8  callref = 0x0087
        Sending Complete
        Bearer Capability i = 0x8090A2
                Standard = CCITT
                Transfer Capability = Speech
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA18397
                Preferred, Channel 23
        Calling Party Number i = 0x2181, '778328XXXX'
                Plan:ISDN, Type:National
        Called Party Number i = 0xA1, '91141XXXXXXXXX'
                Plan:ISDN, Type:National
000303: .Feb  4 22:08:29.081: ISDN Se0/2/0:23 Q931: RX <- CALL_PROC pd = 8  callref = 0x8087
        Channel ID i = 0xA98397
                Exclusive, Channel 23
000304: .Feb  4 22:08:29.081: ISDN Se0/2/0:23 Q931: RX <- PROGRESS pd = 8  callref = 0x8087
        Cause i = 0x80FF - Interworking error; unspecified
        Progress Ind i = 0x8088 - In-band info or appropriate now available

I also tried with no external phone number masks, but the result was exactly the same.

Does anybody has an idea what i coul do about that? Thank you for your help!

Lukas

I have this problem too.
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Paolo Bevilacqua Fri, 02/05/2010 - 00:04

You must always drop 9, that is for international send to telco:

011

If using MGCP, also set plan/type unknown/unknwin in CM.

lukas.schaer Fri, 02/05/2010 - 05:49

Sorry, i forgot to mentioned but i also tried without the 9. Result is that the call gets immediately disconnected without hearing any operator or tone. Here the logs:

000608: Feb  5 13:17:55.666: ISDN Se0/2/0:23 Q931: pak_private_number: Invalid type/plan 0x0 0x1 may be overriden; sw-type 3
000609: Feb  5 13:17:55.670: ISDN Se0/2/0:23 Q931: Applying typeplan for sw-type 0x3 is 0x2 0x1, Called num 01141XXXXXXXXX
000610: Feb  5 13:17:55.670: ISDN Se0/2/0:23 Q931: TX -> SETUP pd = 8  callref = 0x0095
    Sending Complete
    Bearer Capability i = 0x8090A2
        Standard = CCITT
        Transfer Capability = Speech 
        Transfer Mode = Circuit
        Transfer Rate = 64 kbit/s
    Channel ID i = 0xA18397
        Preferred, Channel 23
    Calling Party Number i = 0x2181, 'XXXX'
        Plan:ISDN, Type:National
    Called Party Number i = 0xA1, '01141XXXXXXXXX'
        Plan:ISDN, Type:National
000611: Feb  5 13:17:55.750: ISDN Se0/2/0:23 Q931: RX <- CALL_PROC pd = 8  callref = 0x8095
    Channel ID i = 0xA98397
        Exclusive, Channel 23
000612: Feb  5 13:17:55.906: ISDN Se0/2/0:23 Q931: RX <- DISCONNECT pd = 8  callref = 0x8095
    Cause i = 0x8090 - Normal call clearing
000613: Feb  5 13:17:55.910: ISDN Se0/2/0:23 Q931: TX -> RELEASE pd = 8  callref = 0x0095
000614: Feb  5 13:17:55.930: ISDN Se0/2/0:23 Q931: RX <- RELEASE_COMP pd = 8  callref = 0x8095

Thank you!

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