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New Member

Interruption during a conversation

Hi,

my problem is a interruption after 10s when i do a call via the PSTN. Alls works ok. I can start a conversation but after 10s i get a busy tone.

I have a 7960 with CCM 3.09 and a 3640 with a VIC-2BRI-S/T and IOS 12.1.5T.

My config:

interface BRI2/0

no ip address

isdn switch-type basic-net3

isdn incoming-voice voice

voice-port 2/1/0

compand-type a-law

cptone DE

description S0 PSTN 6509869

I start debug isdn q931 and get the following output after interruption:

00:51:36: ISDN BR2/0: RX <- INFORMATION pd = 8 callref = 0x82

00:51:36: Display i = '1', 0x20, 'Einheiten'

00:51:36: ISDN BR2/0: TX -> RELEASE pd = 8 callref = 0x02

00:51:36: Cause i = 0x80E27B - Message not compatible with call state or not implemented

00:51:37: ISDN BR2/0: TX -> RELEASE pd = 8 callref = 0x02

00:51:37: Cause i = 0x80E27B - Message not compatible with call state or not implemented

00:51:38: ISDN BR2/0: TX -> RELEASE pd = 8 callref = 0x02

00:51:38: Cause i = 0x80E27B - Message not compatible with call state or not implemented

00:51:39: ISDN BR2/0: TX -> RELEASE pd = 8 callref = 0x02

00:51:39: Cause i = 0x80E27B - Message not compatible with call state or not implemented

00:51:40: ISDN BR2/0: Event: Syncing Discards: L2 Discards 1, L2D_Task Counter 0

00:51:42: Debug message from DSP for TE Basic Rate Interface 2/1/0

00:51:42: 22 2EEDF3 0 0 0 0

00:51:42: ISDN BR2/0: RX <- RELEASE_COMP pd = 8 callref = 0x82

00:51:42: Facility i = 0x91A1130202E5C2020122300AA1053003020101820101

00:51:42: - ETSI Supplementary Service, Invoke, AOC-D Charging Units: 1

00:51:42: Display i = '1', 0x20, 'Einheiten'

00:51:42: BRI2/0:1: AOC-D Recorded Units = 1

Any help+solution???

2 REPLIES
New Member

Re: Interruption during a conversation

It would appear the router does not like the display request inbound from the network...

00:51:36: Display i = '1', 0x20, 'Einheiten'

00:51:36: ISDN BR2/0: TX -> RELEASE pd = 8 callref = 0x02

00:51:36: Cause i = 0x80E27B - Message not compatible with call state or not implemented

00:51:37: ISDN BR2/0: TX -> RELEASE pd = 8 callref = 0x02

What is just before this in the debug...?

The Q931 is not expecting this, but something else.

You should always turn on "service timestamps debug datetime msec" from the global config, mode whrn debugging ISDN... milliseconds count...

Jeff

New Member

Re: Interruption during a conversation

Hello Jeff,

here is the complete debug record from start till end:

start call:

Jun 20 09:37:25.375: ISDN BR2/0: TX -> SETUP pd = 8 callref = 0x03

Jun 20 09:37:25.375: Bearer Capability i = 0x8090A3

Jun 20 09:37:25.375: Channel ID i = 0x83

Jun 20 09:37:25.375: Calling Party Number i = 0x80, '4453', Plan:Unknown, Type:Unknown

Jun 20 09:37:25.379: Called Party Number i = 0x80, '3284022', Plan:Unknown, Type:Unknown

Jun 20 09:37:25.635: ISDN BR2/0: RX <- SETUP_ACK pd = 8 callref = 0x83

Jun 20 09:37:25.635: Channel ID i = 0x89

Jun 20 09:37:25.819: ISDN BR2/0: RX <- CALL_PROC pd = 8 callref = 0x83

Jun 20 09:37:26.151: ISDN BR2/0: RX <- ALERTING pd = 8 callref = 0x83

Jun 20 09:37:26.151:

Progress Ind i = 0x8288 - In-band info or appropriate now available

conversation:

Jun 20 09:37:37.923: ISDN BR2/0: RX <- CONNECT pd = 8 callref = 0x83

Jun 20 09:37:37.927: Date/Time i = 0x0106140927

Jun 20 09:37:37.927: Connected Number i = 0x218138323133323834303232

Jun 20 09:37:37.931: ISDN BR2/0: TX -> CONNECT_ACK pd = 8 callref = 0x03

Jun 20 09:37:37.987: ISDN BR2/0: RX <- FACILITY pd = 8 callref = 0x83

Jun 20 09:37:37.987: Facility i = 0x91A1130202E611020122300AA1053003020101820100

Jun 20 09:37:37.991: - ETSI Supplementary Service, Invoke, AOC-D Charging Units: 1

Jun 20 09:37:37.991: BRI2/0:1: AOC-D Recorded Units = 1

termination:

Jun 20 09:37:47.907: ISDN BR2/0: RX <- INFORMATION pd = 8 callref = 0x83

Jun 20 09:37:47.911: Display i = '1', 0x20, 'Einheiten'

Jun 20 09:37:47.915: ISDN BR2/0: TX -> RELEASE pd = 8 callref = 0x03

Jun 20 09:37:47.915: Cause i = 0x80E27B - Message not compatible with call state or not implemented

Jun 20 09:37:48.039: ISDN BR2/0: RX <- RELEASE_COMP pd = 8 callref = 0x83

Jun 20 09:37:48.043: Facility i = 0x91A1130202E612020122300AA1053003020101820101

Jun 20 09:37:48.043: - ETSI Supplementary Service, Invoke, AOC-D Charging Units: 1

Jun 20 09:37:48.043: Display i = '1', 0x20, 'Einheiten'

Jun 20 09:37:48.047: BRI2/0:1: AOC-D Recorded Units = 1

The problem occurs only by outbound calls!

Thanks in advance!

Martin

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