CUBE- one way audio intermittent for inbound calls

Unanswered Question
Jan 29th, 2014
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     Have a CUBE on 3800 with 15.14M(6) with SIP to SIP dial peers. Some external inbound callers at times can hear no audio streaming from IVR.

I run a traffic capture from the LAN side of the CUBE and I can hear the audio.

I run a traffic capture on the WAN side (towards caller) and i hear nothing,  BUT the rtp stream is active (50 pps G711a). When i replay this stream on Wireshark i hear silence exactly what the caller can hear...


G711a on both sides but no audio is heard on the WAN side exiting the CUBE towards telco


DIal peers matched= 31 In from itsp and 40 Out to CUCM


Setup:

ITSP--SIP Trunk-- MyCUBE--SIP Trunk--CUCM--IVR(CTI Ports and RPs)

                                                                        |

                                                                 7900 Type A sccp Handsets  


Config attached

Attachment: 
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Hermanus Janse ... Thu, 01/30/2014 - 00:39
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personally I would make the following changes to each dial peer sticking to one dtmf relay form and add the following changes:


dial-peer voice 30 voip

description  Outgoing call leg from CUBE to ITSP

translation-profile outgoing StripZero

destination-pattern 0T

session protocol sipv2

session target sip-server

session transport udp

dtmf-relay rtp-nte

voice-class codec 1 




dspfarm profile 6 transcode 

codec g711ulaw

codec g711alaw

codec g729ar8

codec g729abr8

codec g729r8

maximum sessions 24

associate application SCCP


allow-connections h323 to h323

allow-connections sip to sip

allow-connections sip to h323

allow-connections h323 to sip

redirect ip2ip

signaling forward unconditional

fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none

h323

sip

  bind control source-interface Loopback0

  bind media source-interface Loopback0

Ayodeji Okanlawon Thu, 01/30/2014 - 02:27
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I can see that you are applying your sip bind statement on loopback5..


sip

  bind control source-interface Loopback5

  bind media source-interface Loopback5


The question is this.Can your ITSP connect to that interface?



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"The essence of christianity is not the enthronement but the obliteration of self --William Barclay"

dino55088 Thu, 01/30/2014 - 02:54
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hi,


Yes my itsp can connect and see that interface. Most calls work and only some fail. Intermittent. I have incuded a "show call active voice" for a "failed" incoming call from 0204002244 to 0498870440 . What happens here is silence to external caller coming in on dial peer 31 but there is an RTP stream being sent to him. Wireshark trace on WAN side proves silence within RTP stream exiting CUBE towards callers SBC at 10.193.202.100 from my cube at 10.66.41.1



GENERIC:

SetupTime=12:24:35.980 AEDT Thu Jan 30 2014

Index=1

PeerAddress=0204002244

PeerSubAddress=

PeerId=31

PeerIfIndex=192

LogicalIfIndex=0

ConnectTime=12:24:36.080 AEDT Thu Jan 30 2014

CallDuration=00:00:43 sec

CallState=4

CallOrigin=2

ChargedUnits=0

InfoType=speech

TransmitPackets=2196

TransmitBytes=351360

ReceivePackets=2194

ReceiveBytes=351040

VOIP:

ConnectionId[0x1D4C7D6F 0x888411E3 0xA9FBFF95 0xBEE5C848]

IncomingConnectionId[0x1D4C7D6F 0x888411E3 0xA9FBFF95 0xBEE5C848]

CallID=5201

GlobalCallId=[0x1D4C7D6F 0x888411E3 0xA9FEFF95 0xBEE5C848]

CallReferenceId=0

CallServiceType=Unknown

RTP Loopback Call=FALSE

RemoteIPAddress=10.193.202.100

RemoteUDPPort=14804

RemoteSignallingIPAddress=10.193.202.100

RemoteSignallingPort=5060

RemoteMediaIPAddress=10.193.202.100

RemoteMediaPort=14804

RoundTripDelay=0 ms

SelectedQoS=best-effort

tx_DtmfRelay=inband-voice

FastConnect=FALSE


AnnexE=FALSE


Separate H245 Connection=FALSE


H245 Tunneling=FALSE


SessionProtocol=sipv2

[email protected]

SessionTarget=10.193.202.100

SafEnabled=FALSE

OnTimeRvPlayout=0

GapFillWithSilence=0 ms

GapFillWithPrediction=0 ms

GapFillWithInterpolation=0 ms

GapFillWithRedundancy=0 ms

HiWaterPlayoutDelay=0 ms

LoWaterPlayoutDelay=0 ms

TxPakNumber=0

TxSignalPak=0

TxComfortNoisePak=0

TxDuration=0

TxVoiceDuration=0

RxPakNumber=0

RxSignalPak=0

RxComfortNoisePak=0

RxDuration=0

RxVoiceDuration=0

RxOutOfSeq=0

RxLatePak=0

RxEarlyPak=0

RxBadProtocol=0

PlayDelayCurrent=0

PlayDelayMin=0

PlayDelayMax=0

PlayDelayClockOffset=0

PlayDelayJitter=0

PlayErrPredictive=0

PlayErrInterpolative=0

PlayErrSilence=0

PlayErrBufferOverFlow=0

PlayErrRetroactive=0

PlayErrTalkspurt=0

ClockAdjustDuration=0

EarlyPacketDuration=0

LateDiscardDuration=0

SilenceDiscardDuration=0

JBuffDecreaseDuration=0

JBuffIncreaseDuration=0

OutSignalLevel=0

InSignalLevel=0

LevelTxPowerMean=0

LevelRxPowerMean=0

LevelBgNoise=0

ERLLevel=0

ACOMLevel=0

ErrRxDrop=0

ErrTxDrop=0

ErrTxControl=0

ErrRxControl=0

ReceiveDelay=0 ms

LostPackets=0

EarlyPackets=0

LatePackets=0

SRTP = off

TextRelay = off

VAD = disabled

CoderTypeRate=g711alaw

CodecBytes=160

Media Setting=flow-through

CallerName=

CallerIDBlocked=False

OriginalCallingNumber=0204002244

OriginalCallingOctet=0x0

OriginalCalledNumber=0498870440

OriginalCalledOctet=0x0

OriginalRedirectCalledNumber=

OriginalRedirectCalledOctet=0x80

TranslatedCallingNumber=0204002244

TranslatedCallingOctet=0x0

TranslatedCalledNumber=0498870440

TranslatedCalledOctet=0x0

TranslatedRedirectCalledNumber=

TranslatedRedirectCalledOctet=0x80

GwReceivedCalledNumber=0498870440

GwReceivedCalledOctet3=0x0

GwReceivedCallingNumber=0204002244

GwReceivedCallingOctet3=0x0

GwReceivedCallingOctet3a=0x80

MediaInactiveDetected=no

MediaInactiveTimestamp=

MediaControlReceived=

LongDurationCallDetected=no

LongDurCallTimestamp=

LongDurcallDuration=

Username=0204002244

MlppServiceDomainNW=0 (none)

MlppServiceDomainID=

PrecedenceLevel=0 (PRECEDENCE_LEVEL_NONE)


CPA Active Call Parameters

  CPA Event Status: DISABLE


GENERIC:

SetupTime=12:24:35.994 AEDT Thu Jan 30 2014

Index=1

PeerAddress=2440

PeerSubAddress=

PeerId=400

PeerIfIndex=202

LogicalIfIndex=0

ConnectTime=12:24:36.074 AEDT Thu Jan 30 2014

CallDuration=00:00:43 sec

CallState=4

CallOrigin=1

ChargedUnits=0

InfoType=speech

TransmitPackets=2196

TransmitBytes=351360

ReceivePackets=4396

ReceiveBytes=703360

VOIP:

ConnectionId[0x1D4C7D6F 0x888411E3 0xA9FBFF95 0xBEE5C848]

IncomingConnectionId[0x1D4C7D6F 0x888411E3 0xA9FBFF95 0xBEE5C848]

CallID=5202

GlobalCallId=[0x1D4C7D6F 0x888411E3 0xA9FEFF95 0xBEE5C848]

CallReferenceId=0

CallServiceType=Unknown

RTP Loopback Call=FALSE

RemoteIPAddress=10.66.22.20

RemoteUDPPort=31334

RemoteSignallingIPAddress=10.66.22.20

RemoteSignallingPort=5060

RemoteMediaIPAddress=10.66.21.20

RemoteMediaPort=31334

RoundTripDelay=0 ms

SelectedQoS=best-effort

tx_DtmfRelay=rtp-nte

FastConnect=FALSE


AnnexE=FALSE


Separate H245 Connection=FALSE


H245 Tunneling=FALSE


SessionProtocol=sipv2

[email protected]

SessionTarget=10.66.22.20

SafEnabled=FALSE

OnTimeRvPlayout=0

GapFillWithSilence=0 ms

GapFillWithPrediction=0 ms

GapFillWithInterpolation=0 ms

GapFillWithRedundancy=0 ms

HiWaterPlayoutDelay=0 ms

LoWaterPlayoutDelay=0 ms

TxPakNumber=0

TxSignalPak=0

TxComfortNoisePak=0

TxDuration=0

TxVoiceDuration=0

RxPakNumber=0

RxSignalPak=0

RxComfortNoisePak=0

RxDuration=0

RxVoiceDuration=0

RxOutOfSeq=0

RxLatePak=0

RxEarlyPak=0

RxBadProtocol=0

PlayDelayCurrent=0

PlayDelayMin=0

PlayDelayMax=0

PlayDelayClockOffset=0

PlayDelayJitter=0

PlayErrPredictive=0

PlayErrInterpolative=0

PlayErrSilence=0

PlayErrBufferOverFlow=0

PlayErrRetroactive=0

PlayErrTalkspurt=0

ClockAdjustDuration=0

EarlyPacketDuration=0

LateDiscardDuration=0

SilenceDiscardDuration=0

JBuffDecreaseDuration=0

JBuffIncreaseDuration=0

OutSignalLevel=0

InSignalLevel=0

LevelTxPowerMean=0

LevelRxPowerMean=0

LevelBgNoise=0

ERLLevel=0

ACOMLevel=0

ErrRxDrop=0

ErrTxDrop=0

ErrTxControl=0

ErrRxControl=0

ReceiveDelay=0 ms

LostPackets=0

EarlyPackets=0

LatePackets=0

SRTP = off

TextRelay = off

VAD = disabled

CoderTypeRate=g711alaw

CodecBytes=160

Media Setting=flow-through

AlertTimepoint=12:24:36.004 AEDT Thu Jan 30 2014

CallerName=

CallerIDBlocked=False

OriginalCallingNumber=0204002244

OriginalCallingOctet=0x0

OriginalCalledNumber=0498870440

OriginalCalledOctet=0x0

OriginalRedirectCalledNumber=

OriginalRedirectCalledOctet=0x80

TranslatedCallingNumber=00204002244

TranslatedCallingOctet=0x0

TranslatedCalledNumber=2440

TranslatedCalledOctet=0x0

TranslatedRedirectCalledNumber=

TranslatedRedirectCalledOctet=0x80

GwReceivedCalledNumber=0498870440

GwReceivedCalledOctet3=0x0

GwOutpulsedCalledNumber=2440

GwOutpulsedCalledOctet3=0x0

GwReceivedCallingNumber=0204002244

GwReceivedCallingOctet3=0x0

GwReceivedCallingOctet3a=0x80

GwOutpulsedCallingNumber=00204002244

GwOutpulsedCallingOctet3=0x0

GwOutpulsedCallingOctet3a=0x80

MediaInactiveDetected=no

MediaInactiveTimestamp=

MediaControlReceived=

LongDurationCallDetected=no

LongDurCallTimestamp=

LongDurcallDuration=

Username=0204002244

MlppServiceDomainNW=0 (none)

MlppServiceDomainID=

PrecedenceLevel=0 (PRECEDENCE_LEVEL_NONE)

Ayodeji Okanlawon Thu, 01/30/2014 - 03:06
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My suggestion will be to upgrade the IOS on the CUBE. Since this is intermittent..However I suggest that you enable debug ccsip messages and confrim that for those calls that you are getting silence on, the call path is the same. Ie ensure the the media parameters are the same...If it is the same, then upgrade IOS.



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"The essence of christianity is not the enthronement but the obliteration of self --William Barclay"

dino55088 Thu, 01/30/2014 - 04:12
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Yes I agree. Tried 15.1M2 and M7 only so far

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