[cisco-voip] ISDN PRI/H.323 Gateway Issue

Richard Rolfe richard.rolfe at nscglobal.com
Tue Jan 19 11:36:45 EST 2010


Hi Ryan, 
 
Many thanks for the reply. I should have been more explicit. The problem
occurs with inbound calls to the gateway from the PSTN. An external
number is trying to reach ext 80912 - I think maybe some of the debug
got cut when I posted it. Outbound calls have no problem in connecting. 
 
Does what you say still apply in this case? 
 
Best regards
 
Richard

________________________________

From: Ryan Ratliff [mailto:rratliff at cisco.com] 
Sent: 19 January 2010 15:53
To: Richard Rolfe
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] ISDN PRI/H.323 Gateway Issue


The outbound Setup with incomplete number followed by Setup_Ack is
called overlap sending.   The router is telling the provider it has some
digits, but not all of them.  You also have a progress indicator telling
the provider to cut through audio for further digits to be sent in-band.
I'd guess this is what your provider doesn't like (the cause of the
Status message). 

The call is timing out when the provider doesn't get any further digits
so drops the call.

-Ryan

On Jan 19, 2010, at 3:58 AM, Richard Rolfe wrote:

Hi folks, 
 
Got a problem with a H323 gateway and a T1. It would appear to me that
the T1 is trying two different numbers doing a Q.931 debug and there
appear to be several ISDN cause codes that are concerning with Invalid
IE elements reecieve messages coming from the PSTN. I was concerned it
was the translation rules however I did remove the rule from the voice
port and still have the same error coming in. It would appear to me that
the T1 and the gateway are not talking to each other properly and
something is missing. This is in Hong Kong for anyone with local
knowledge and T1 settings there. 
 
Best regards
 
Richard
 
*Jan 12 10:08:41.619: ISDN Se0/3/0:23 Q931: TX -> SETUP pd = 8  callref
= 0x00E0
        Bearer Capability i = 0x9090A2
                Standard = CCITT
                Transfer Capability = 3.1kHz Audio
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA98397
                Exclusive, Channel 23
        Progress Ind i = 0x8A83 - Origination address is non-ISDN
        Calling Party Number i = 0x00C3, N/A
                Plan:Unknown, Type:Unknown
        Called Party Number i = 0x80, '12'
                Plan:Unknown, Type:Unknown
*Jan 12 10:08:41.647: ISDN Se0/3/0:23 Q931: RX <- STATUS pd = 8  callref
= 0x80E
0
        Cause i = 0x82E41E - Invalid information element contents
        Call State i = 0x01
*Jan 12 10:08:41.647: ISDN Se0/3/0:23 Q931: RX <- SETUP_ACK pd = 8
callref = 0x
80E0
        Channel ID i = 0xA98397
                Exclusive, Channel 23
*Jan 12 10:08:41.655: ISDN Se0/3/0:23 EVENT: process_rxstate: ces/callid
1/0x807
C calltype 2 CALL_SETUP_ACK
*Jan 12 10:08:52.155: ISDN Se0/3/0:23 Q931: RX <- DISCONNECT pd = 8
callref = 0
x0029
        Cause i = 0x82E6333130 - Recovery on timer expiry
        Progress Ind i = 0x8288 - In-band info or appropriate now
available
*Jan 12 10:08:52.159: ISDN Se0/3/0:23 EVENT: process_rxstate: ces/callid
1/0x36
calltype 2 CALL_DISC
*Jan 12 10:08:52.159: ISDN Se0/3/0:23 Q931: TX -> RELEASE pd = 8
callref = 0x80
29
*Jan 12 10:08:52.167: ISDN Se0/3/0:23 Q931: TX -> DISCONNECT pd = 8
callref = 0
x00E0
        Cause i = 0x80E6 - Recovery on timer expiry
*Jan 12 10:08:52.195: ISDN Se0/3/0:23 Q931: RX <- RELEASE pd = 8
callref = 0x80
E0
*Jan 12 10:08:52.199: ISDN Se0/3/0:23 EVENT: process_rxstate: ces/callid
1/0x807
C calltype 2 CALL_CLEARED
*Jan 12 10:08:52.199: ISDN Se0/3/0:23 Q931: TX -> RELEASE_COMP pd = 8
callref =
 0x00E0
*Jan 12 10:08:52.247: ISDN Se0/3/0:23 Q931: RX <- RELEASE_COMP pd = 8
callref =
 0x0029
*Jan 12 10:08:52.251: ISDN Se0/3/0:23 EVENT: process_rxstate: ces/callid
1/0x36
calltype 2 CALL_CLEARED
*Jan 12 10:08:56.199: ISDN Se0/3/0:23 Q931: RX <- SETUP pd = 8  callref
= 0x002A
        Sending Complete
        Bearer Capability i = 0x9090A2
                Standard = CCITT
                Transfer Capability = 3.1kHz Audio
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA18384
                Preferred, Channel 4
        Progress Ind i = 0x8A81 - Call not end-to-end ISDN, may have
in-band inf
o
        Display i = 'LONG DISTANCE'
        Calling Party Number i = 0x00C3, N/A
                Plan:Unknown, Type:Unknown
        Called Party Number i = 0x80, '912'
                Plan:Unknown, Type:Unknown
*Jan 12 10:08:56.203: ISDN Se0/3/0:23 EVENT: process_rxstate: ces/callid
1/0x37
calltype 2 CALL_INCOMING
*Jan 12 10:08:56.203: ISDN Se0/3/0:23 EVENT: call_incoming: call_id
0x0037, Guid
 = 541880CF8037
*Jan 12 10:08:56.215: ISDN Se0/3/0:23 EVENT: process_pri_call: call id
0x807D, n
umber 12, Guid 541880CF8037, speed 0, call type VOICE, redial No, CSM
call No, p
data Yes
*Jan 12 10:08:56.215: ISDN Se0/3/0:23 Q931: Applying typeplan for
sw-type 0x11 i
s 0x0 0x0, Calling num
*Jan 12 10:08:56.219: ISDN Se0/3/0:23 Q931: Applying typeplan for
sw-type 0x11 i
s 0x0 0x0, Called num 12
*Jan 12 10:08:56.219: ISDN Se0/3/0:23 Q931: TX -> CALL_PROC pd = 8
callref = 0x
802A
        Channel ID i = 0xA98384
                Exclusive, Channel 4
*Jan 12 10:08:56.223: ISDN Se0/3/0:23 Q931: TX -> SETUP pd = 8  callref
= 0x00E1
        Bearer Capability i = 0x9090A2
                Standard = CCITT
                Transfer Capability = 3.1kHz Audio
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA98397
                Exclusive, Channel 23
        Progress Ind i = 0x8A83 - Origination address is non-ISDN
        Calling Party Number i = 0x00C3, N/A
                Plan:Unknown, Type:Unknown
        Called Party Number i = 0x80, '12'
                Plan:Unknown, Type:Unknown
*Jan 12 10:08:56.251: ISDN Se0/3/0:23 Q931: RX <- STATUS pd = 8  callref
= 0x80E
1
        Cause i = 0x82E41E - Invalid information element contents
        Call State i = 0x01
*Jan 12 10:08:56.255: ISDN Se0/3/0:23 Q931: RX <- SETUP_ACK pd = 8
callref = 0x
80E1
        Channel ID i = 0xA98397
                Exclusive, Channel 23
*Jan 12 10:08:56.255: ISDN Se0/3/0:23 EVENT: process_rxstate: ces/callid
1/0x807
D calltype 2 CALL_SETUP_ACK
*Jan 12 10:09:05.387: ISDN Se0/3/0:23 Q931: RX <- DISCONNECT pd = 8
callref = 0
x002A
        Cause i = 0x8A90 - Normal call clearing
        Progress Ind i = 0x8288 - In-band info or appropriate now
available
*Jan 12 10:09:05.391: ISDN Se0/3/0:23 EVENT: process_rxstate: ces/callid
1/0x37
calltype 2 CALL_DISC
*Jan 12 10:09:05.391: ISDN Se0/3/0:23 Q931: TX -> RELEASE pd = 8
callref = 0x80
2A
*Jan 12 10:09:05.399: ISDN Se0/3/0:23 Q931: TX -> DISCONNECT pd = 8
callref = 0
x00E1
        Cause i = 0x8090 - Normal call clearing
*Jan 12 10:09:05.431: ISDN Se0/3/0:23 Q931: RX <- RELEASE pd = 8
callref = 0x80
E1
*Jan 12 10:09:05.431: ISDN Se0/3/0:23 EVENT: process_rxstate: ces/callid
1/0x807
D calltype 2 CALL_CLEARED
*Jan 12 10:09:05.435: ISDN Se0/3/0:23 Q931: TX -> RELEASE_COMP pd = 8
callref =
 0x00E1
*Jan 12 10:09:05.515: ISDN Se0/3/0:23 Q931: RX <- RELEASE_COMP pd = 8
callref =
 0x002A
*Jan 12 10:09:05.519: ISDN Se0/3/0:23 EVENT: process_rxstate: ces/callid
1/0x37
calltype 2 CALL_CLEARED
HKVGW#
HKVGW#
 
Here's the gateway configuration 
 
HKVGW#sh run
Building configuration...

Current configuration : 3591 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname HKVGW
!
boot-start-marker
boot system flash:c2801-advipservicesk9-mz.124-15.T9.bin
boot system flash:
boot system flash bootflash:
boot-end-marker
!
card type t1 0 3
!
aaa new-model
!
!
aaa authentication login default local
!
!
aaa session-id common
network-clock-participate wic 3
network-clock-select 1 T1 0/3/0
dot11 syslog
ip cef
!
!
multilink bundle-name authenticated
!
isdn switch-type primary-ntt
!
voice-card 0
 no local-bypass
!
!
voice class codec 1
 codec preference 1 g711ulaw
 codec preference 2 g711alaw
 codec preference 3 g729r8
!
voice class codec 2
 codec preference 1 g729r8
 codec preference 2 g711ulaw
 codec preference 3 g711alaw
!
!
voice class h323 1
 h225 timeout tcp establish 3
!
!
voice translation-rule 1
 rule 1 /908/ /908/
 rule 2 /^9\(..$\)/ /809\1/
!
!
voice translation-profile EtoP
 translate called 1
!
!
!controller T1 0/3/0
 framing esf
 linecode b8zs
 cablelength long 0db
 pri-group timeslots 1-24
!
!
translation-rule 19
 Rule 1 ^0.% 90
 Rule 2 ^1% 901
 Rule 3 ^2% 902
 Rule 4 ^3% 903
 Rule 5 ^4% 904
 Rule 6 ^5% 905
 Rule 7 ^6% 906
 Rule 8 ^7% 907
 Rule 9 ^8% 908
 Rule 10 ^9% 909
!
!
translation-rule 9
 Rule 1 ^0.% 90
 Rule 2 ^1% 901
 Rule 3 ^2% 902
 Rule 4 ^3% 903
 Rule 5 ^4% 904
 Rule 6 ^5% 905
 Rule 7 ^6% 906
 Rule 8 ^7% 907
 Rule 9 ^8% 908
 Rule 10 ^9% 909
!
!
interface FastEthernet0/0
 ip address 192.168.132.2 255.255.255.0
 duplex auto
 speed auto
 h323-gateway voip bind srcaddr 192.168.132.2
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/3/0:23
 no ip address
 encapsulation hdlc
 isdn switch-type primary-ntt
 isdn incoming-voice voice
 no cdp enable
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 192.168.132.3
!
!
ip http server
no ip http secure-server
!
!
!
control-plane
!
disable-eadi
!
!
voice-port 0/0/0
!
voice-port 0/0/1
!
voice-port 0/3/0:23
 translate calling 9
 cptone HK
!
!
!
dial-peer voice 900 pots
 preference 1
 destination-pattern 9T
 progress_ind setup enable 3
 progress_ind alert enable 8
 progress_ind progress enable 8
 progress_ind connect enable 8
 direct-inward-dial
 port 0/3/0:23
!
dial-peer voice 1 voip
 preference 1
 destination-pattern 809..
 voice-class codec 1
 voice-class h323 1
 session target ipv4:172.22.0.22
 no vad
!
dial-peer voice 2 voip
 destination-pattern 809..
 voice-class codec 1
 voice-class h323 1
 session target ipv4:172.22.0.21
 no vad
!
!
!
call-manager-fallback
 secondary-dialtone 9
 max-conferences 4 gain -6
 transfer-system full-consult
 timeouts interdigit 6
 ip source-address 192.168.132.2 port 2000
 max-ephones 30
 max-dn 150
 dialplan-pattern 1 'Removed config'... extension-length 5
extension-pattern 80...
 date-format dd-mm-yy
!
!
!
scheduler allocate 20000 1000
end
 
 
 

 
 
 
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