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Beginner

One way audio through isdn line

Hello all,

I have a 2801 router with C2801-advipservicesk9-mz.124-24.T5, CME 7.1 installed and an isdn vic2-2bri-nt/te card.

I'm trying to make phone calls with the ephones through and from the isdn line but in both cases i experience one way audio,the other party can hear me but i can't hear them.

The ephones communicate with each other with no problems..

I have tried to change between many codecs but the problem still persists.

The problem is only between isdn calls..

Any ideas what's going wrong?

Thanks.

Antony.

8 REPLIES 8
Hall of Fame Master

One way audio through isdn line

Update IOS and check again.

Beginner

One way audio through isdn line

Hello again,

i updated to 151-4.m4 with CME 8.6  and still the same problem..I also replace the VIC2-2BRI-NT/TE card with a new one but nothing change..

Here is the debug isdn q931 output:

*Sep 12 09:49:54.195: ISDN BR0/1/0 Q931: Applying typeplan for sw-type 0x1 is 0x

0 0x0, Calling num 1002

*Sep 12 09:49:54.199: ISDN BR0/1/0 Q931: Applying typeplan for sw-type 0x1 is 0x

0 0x0, Called num 21095XXXXX

*Sep 12 09:49:54.211: ISDN BR0/1/0 Q931: Sending SETUP  callref = 0x0008 callID

= 0x800A switch = basic-net3 interface = User

*Sep 12 09:49:54.211: ISDN BR0/1/0 Q931: TX -> SETUP pd = 8  callref = 0x08

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0x81

                Preferred, B1

        Progress Ind i = 0x8183 - Origination address is non-ISDN

        Calling Party Number i = 0x0080, '1002'

                Plan:Unknown, Type:Unknown

        Called Party Number i = 0x80, '21095XXXXX'

                Plan:Unknown, Type:Unknown

*Sep 12 09:49:54.495: ISDN BR0/1/0 Q931: RX <- CALL_PROC pd = 8  callref = 0x88

        Channel ID i = 0x89

                Exclusive, B1

*Sep 12 09:49:55.063: ISDN BR0/1/0 Q931: RX <- ALERTING pd = 8  callref = 0x88

        Progress Ind i = 0x8488 - In-band info or appropriate now available

*Sep 12 09:50:04.211: ISDN BR0/1/0 Q931: TX -> DISCONNECT pd = 8  callref = 0x08

        Cause i = 0x8090 - Normal call clearing

*Sep 12 09:50:04.323: ISDN BR0/1/0 Q931: RX <- RELEASE pd = 8  callref = 0x88

*Sep 12 09:50:04.323: ISDN BR0/1/0 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x

08

Any ideas?

Thanks again..

Antony

Hall of Fame Master

Re: One way audio through isdn line

Ask telco to come on premises and verify that they can talk using their test equipment.

If that works you may have a faulty DSP module in router.

VIP Advisor

Re: One way audio through isdn line

As per your debug, I see that your call isn't completed (normal clearing). Not sure whether you disconnected the call before connected state or something else.

We need the debugs for full call till connected stage. Once the call is connected, post the output of "show call active voice calling-number ..." and lets see RX/TX. Also, lets see controller stats.

Also, from your debugs I can see that the calling number sent to teleco is "1002" which I doubt it will be accepted. Therefore, your call will be dropped by teleco rather than completed.

You need to implement a voice translation rule or use dial-plan command to manipulate the calling number correctly.

"Please rate useful posts"

Hall of Fame Master

One way audio through isdn line

From your debugs I can see that the calling number sent to teleco is "1002" which won't be definitly accepted. Therefore, your call will be dropped by teleco rather than completed.

You need to implement a voice translation rule or use dial-plan command to manipulate the calling number correctly.

Do not assume that telco will not accept a calling number like that. They will simply replace it with the assigned number.

VIP Advisor

Re: One way audio through isdn line

Thanks Paolo for highligting this. In fact I have seen only telecos who drop those calls. Good to know that some are replacing the calling number.

Thanks for sharing the info

Beginner

One way audio through isdn line

It was my mistake the above debug because when i make a call i don't even hear the ring tone so i don't know if the other party answer the call.

The correct is this one:

Sep 12 10:24:55.047: ISDN BR0/1/0 Q931: Applying typeplan for sw-type 0x1 is 0x

0 0x0, Calling num 1002

*Sep 12 10:24:55.047: ISDN BR0/1/0 Q931: Applying typeplan for sw-type 0x1 is 0x

0 0x0, Called num 21095XXXXX

*Sep 12 10:24:55.063: ISDN BR0/1/0 Q931: Sending SETUP  callref = 0x0009 callID

= 0x800B switch = basic-net3 interface = User

*Sep 12 10:24:55.063: ISDN BR0/1/0 Q931: TX -> SETUP pd = 8  callref = 0x09

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0x81

                Preferred, B1

        Progress Ind i = 0x8183 - Origination address is non-ISDN

        Calling Party Number i = 0x0080, '1002'

                Plan:Unknown, Type:Unknown

        Called Party Number i = 0x80, '21095XXXXX'

                Plan:Unknown, Type:Unknown

*Sep 12 10:24:55.259: ISDN BR0/1/0 Q931: RX <- CALL_PROC pd = 8  callref = 0x89

        Channel ID i = 0x89

                Exclusive, B1

*Sep 12 10:24:55.635: ISDN BR0/1/0 Q931: RX <- ALERTING pd = 8  callref = 0x89

        Progress Ind i = 0x8488 - In-band info or appropriate now available

*Sep 12 10:24:58.923: ISDN BR0/1/0 Q931: RX <- CONNECT pd = 8  callref = 0x89

        Date/Time i = 0x0C090C0D08

                Date (dd-mm-yr)   = 12-09-12

                Time (hr:mnt:sec) = 13:08:76

        Connected Number i = 0x0183, '21095XXXXX'

*Sep 12 10:24:58.927: %ISDN-6-CONNECT: Interface BRI0/1/0:1 is now connected to

1002 N/A

*Sep 12 10:24:58.927: ISDN BR0/1/0 Q931: TX -> CONNECT_ACK pd = 8  callref = 0x0

9

*Sep 12 10:25:01.451: %ISDN-6-DISCONNECT: Interface BRI0/1/0:1  disconnected fro

m 21095XXXXX , call lasted 2 seconds

*Sep 12 10:25:01.451: ISDN BR0/1/0 Q931: TX -> DISCONNECT pd = 8  callref = 0x09

        Cause i = 0x8090 - Normal call clearing

*Sep 12 10:25:01.619: ISDN BR0/1/0 Q931: RX <- RELEASE pd = 8  callref = 0x89

*Sep 12 10:25:01.623: ISDN BR0/1/0 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x

09

Cisctest#

Cisctest#

*Sep 12 10:25:16.607: ISDN BR0/1/0 Q931: Ux_DLRelInd: DL_REL_IND received from L

2

Beginner

One way audio through isdn line

Here is the active voice calling-number output and the controller stats

Cisctest#show call active voice calling-number 1002

Telephony call-legs: 2

SIP call-legs: 0

H323 call-legs: 0

Call agent controlled call-legs: 0

SCCP call-legs: 0

Multicast call-legs: 0

Total call-legs: 2

GENERIC:

SetupTime=*12:58:21.411 Athens Wed Sep 12 2012

Index=1

PeerAddress=1002

PeerSubAddress=

PeerId=20002

PeerIfIndex=16

LogicalIfIndex=15

ConnectTime=*12:58:26.071 Athens Wed Sep 12 2012

CallDuration=00:00:37 sec

CallState=4

CallOrigin=2

ChargedUnits=0

InfoType=speech

TransmitPackets=1707

TransmitBytes=54624

ReceivePackets=0

ReceiveBytes=0

TELE:

ConnectionId=[0x99D560CD 0xFBFF11E1 0x8056EF10 0x82459141]

IncomingConnectionId=[0x99D560CD 0xFBFF11E1 0x8056EF10 0x82459141]

CallID=31

GlobalCallId=[0x99D560CD 0xFBFF11E1 0x8056EF10 0x82459141]

Port=50/0/2 (31)

BearerChannel=50/0/2.0

TxDuration=34140 ms

VoiceTxDuration=34140 ms

FaxTxDuration=0 ms

CoderTypeRate=g729r8

NoiseLevel=0

ACOMLevel=0

OutSignalLevel=0

InSignalLevel=0

InfoActivity=2

ERLLevel=0

EchoCancellerMaxReflector=29556

SessionTarget=

ImgPages=0

CallerName=

CallerIDBlocked=False

LongDurationCallDetected=no

LongDurCallTimeStamp=

LongDurCallDuration=

OriginalCallingNumber=1002

OriginalCallingOctet=0x0

OriginalCalledNumber=

OriginalCalledOctet=0x80

OriginalRedirectCalledNumber=

OriginalRedirectCalledOctet=0x0

TranslatedCallingNumber=1002

TranslatedCallingOctet=0x0

TranslatedCalledNumber=

TranslatedCalledOctet=0x80

TranslatedRedirectCalledNumber=

TranslatedRedirectCalledOctet=0x0

GwCollectedCalledNumber=921095XXXXXX

GwReceivedCallingNumber=1002

GwReceivedCallingOctet3=0x0

GwReceivedCallingOctet3a=0x0

MlppServiceDomainNW=0 (none)

MlppServiceDomainID=0

PrecedenceLevel=-1 (PRECEDENCE_LEVEL_NONE)

GENERIC:

SetupTime=*12:58:24.049 Athens Wed Sep 12 2012

Index=1

PeerAddress=921095XXXXX

PeerSubAddress=

PeerId=1

PeerIfIndex=11

LogicalIfIndex=0

ConnectTime=*12:58:26.069 Athens Wed Sep 12 2012

CallDuration=00:00:37 sec

CallState=4

CallOrigin=1

ChargedUnits=0

InfoType=speech

TransmitPackets=1953

TransmitBytes=54684

ReceivePackets=1957

ReceiveBytes=39140

TELE:

ConnectionId=[0x99D560CD 0xFBFF11E1 0x8056EF10 0x82459141]

IncomingConnectionId=[0x99D560CD 0xFBFF11E1 0x8056EF10 0x82459141]

CallID=32

GlobalCallId=[0x99D560CD 0xFBFF11E1 0x8056EF10 0x82459141]

Port=0/1/0 (32)

BearerChannel=0/1/0.1

TxDuration=39140 ms

VoiceTxDuration=39140 ms

FaxTxDuration=0 ms

CoderTypeRate=g729r8

NoiseLevel=-69

ACOMLevel=45

OutSignalLevel=-60

InSignalLevel=-64

InfoActivity=1

ERLLevel=45

EchoCancellerMaxReflector=4

SessionTarget=

ImgPages=0

CallerName=

CallerIDBlocked=False

AlertTimepoint=*12:58:24.449 Athens Wed Sep 12 2012

LongDurationCallDetected=no

LongDurCallTimeStamp=

LongDurCallDuration=

OriginalCallingNumber=1002

OriginalCallingOctet=0x0

OriginalCalledNumber=

OriginalCalledOctet=0x80

OriginalRedirectCalledNumber=

OriginalRedirectCalledOctet=0x0

TranslatedCallingNumber=1002

TranslatedCallingOctet=0x0

TranslatedCalledNumber=921095XXXXX

TranslatedCalledOctet=0x80

TranslatedRedirectCalledNumber=

TranslatedRedirectCalledOctet=0x0

GwCollectedCalledNumber=921095XXXXX

GwOutpulsedCalledNumber=21095XXXXX

GwOutpulsedCalledOctet3=0x80

GwReceivedCallingNumber=1002

GwReceivedCallingOctet3=0x0

GwReceivedCallingOctet3a=0x0

GwOutpulsedCallingNumber=1002

GwOutpulsedCallingOctet3=0x0

GwOutpulsedCallingOctet3a=0x0

DSPIdentifier=0/1:1

MlppServiceDomainNW=0 (none)

MlppServiceDomainID=0

PrecedenceLevel=-1 (PRECEDENCE_LEVEL_NONE)

Telephony call-legs: 2

SIP call-legs: 0

H323 call-legs: 0

Call agent controlled call-legs: 0

SCCP call-legs: 0

Multicast call-legs: 0

Total call-legs: 2

Cisctest#show controller BRI0/1/0

BRI unit 4:

layer 1 operating in LT-T mode.

Layer 1 is ACTIVATED. (ISDN L1 State F7)

D Channel Information:

idb at 0x6895DE54, driver data structure at 0x689F7300

Infineon Chip Version 0x1

Infineon Registers:

Int. Status Register [ISTA]=0x00, Aux. Int. [AUXI]=0x00

D-channel: Int. Status Reg: [ISTAD]=0x00, Status. Reg: [STARD]=0x48

Mode Reg: [TR_MODE]=0x01

Transceiver Reg: [TR_CONF0]=0x00

Test mode Reg: [TMD]=0x00

IOM Control Reg: [IOM_CR]=0x08

Status Register [STAR]=0x48, Mode Register [MODED]=0xCA

Serial Data Strobe Control Reg: [SDS1_CR]=0x00, [SDS2_CR]=0x00

RX Buffer Descriptor is at 0x6896F38C, Buffer size 1524

RX Buffer Descriptor is at 0x6896F38C, Buffer size 1524

TX Buffer Descriptor is at 0x689D71EC

pak=0x0 data_ptr=0x0 partial_size=0x0

  0 missed datagrams, 0 overruns

  0 bad datagram encapsulations, 0 memory errors

  0 transmitter underruns  0 d channel collisions

B1 Channel Information:

  0 missed datagrams, 0 overruns

  0 bad datagram encapsulations, 0 memory errors

  0 transmitter underruns  0 d channel collisions

B2 Channel Information:

  0 missed datagrams, 0 overruns

  0 bad datagram encapsulations, 0 memory errors

  0 transmitter underruns  0 d channel collisions

Thanks again..

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