Voice Quality Issues - SIP Cube

Yort Mantup · ‎01-26-2012

Hello,

Looking for some assistance in troubleshooting a VOIP site using a SIP service for voice traffic. The location is reporting issues of outbound and inbound calls that are cutting out, static, crackling and poopping, garbled and echo on both ends of the call. A log has been kept and there is no real pattern. Both outbound and inbound calls are affected and but not constant. Also isues when an incoming call leaves a message, the voicemail recording is garbled and barely audible.

We are working with Verizon on possible bandwidth loss issues. We are not seeing any packet loss on our end. Our environment is:

Call Manager 8.5

Unity Connections 8.5

Router - 2911 Version 15.0(1r)M

Site is using 7942 phones

The site is in Wisconsin, CM's servers in Michigan. Wisconsin site has a 3MB WAN connnection back to Michigan. Below is the info from the show sip-ua statistics command:

SIP Response Statistics (Inbound/Outbound)
    Informational:
      Trying 8365/38643, Ringing 3762/3758,
      Forwarded 0/0, Queued 0/0,
      SessionProgress 3843/3844
    Success:
      OkInvite 37817/37777, OkBye 7296/7423,
      OkCancel 300/303, OkOptions 0/184,
      OkPrack 0/0, OkRegister 0/0
      OkSubscribe 0/0, OkNotify 0/0, OkPublish 0/0
      OkInfo 0/0, OkUpdate 49/7061,
      202Accepted 0/0, OkOptions 0/184
    Redirection (Inbound only except for MovedTemp(Inbound/Outbound)) :
      MultipleChoice 0, MovedPermanently 0,
      MovedTemporarily 0/0, UseProxy 0,
      AlternateService 0
    Client Error:
      BadRequest 50/2461, Unauthorized 0/0,
      PaymentRequired 0/0, Forbidden 0/21,
      NotFound 482/0, MethodNotAllowed 0/0,
      NotAcceptable 0/0, ProxyAuthReqd 0/0,
      ReqTimeout 150/0, Conflict 0/0, Gone 0/0,
      ConditionalRequestFailed 0/0,
      ReqEntityTooLarge 0/0, ReqURITooLarge 0/0,
      UnsupportedMediaType 0/0, UnsupportedURIScheme 0/0,
      BadExtension 0/0, IntervalTooBrief 0/0,
      TempNotAvailable 0/0, CallLegNonExistent 3/11,
      LoopDetected 0/0, TooManyHops 0/0,
      AddrIncomplete 0/0, Ambiguous 0/0,
      BusyHere 39/39, RequestCancel 380/300,
      NotAcceptableMedia 0/1, BadEvent 0/0,
      SETooSmall 0/0, , RequestPending 1/0
      UnsupportedResourcePriority 0/0
    Server Error:
      InternalError 0/81, NotImplemented 0/6,
      BadGateway 0/0, ServiceUnavail 0/359,
      GatewayTimeout 0/0, BadSipVer 0/0,
      PreCondFailure 0/0
    Global Failure:
      BusyEverywhere 0/0, Decline 21/0,
      NotExistAnywhere 12/0, NotAcceptable 6/0
    Miscellaneous counters:
      RedirectRspMappedToClientErr 0

SIP Total Traffic Statistics (Inbound/Outbound)
    Invite 38933/38806, Ack 40813/38775, Bye 7445/7299,
    Cancel 303/300, Options 184/0,
    Prack 0/0, Update 7063/49,
    Subscribe 0/0, Notify 0/0, Publish 0/0
    Refer 0/0, Info 0/0,
    Register 2175/0

Retry Statistics
    Invite 29, Bye 1, Cancel 0, Response 16,
    Prack 0, Reliable1xx 0, Notify 0, Info 0
    Register 0 Subscribe 0 Update 0 Options 0
    Publish 0

SDP application statistics:
Parses: 79787, Builds 224181
Invalid token order: 0, Invalid param: 160338
Not SDP desc: 0, No resource: 0

Carlo Poggiarelli · ‎01-26-2012

Hi.

Can you post your cube config and a show rtp connection during a call.

Regards

Carlo

Please rate all helpful posts "The more you help the more you learn"

Yort Mantup · ‎01-26-2012

Hi Carlo,

Here is the show voip rtp connections output:

VoIP RTP active connections :

No. CallId dstCallId LocalRTP RmtRTP LocalIP RemoteIP

1 47339 47340 30446 29752 10.1.0.49 10.208.90.58

2 47340 47339 32554 10586 10.1.0.49 172.30.237.164

Found 2 active RTP connections

Here is the cube config:

sip-ua

set pstn-cause 1 sip-status 503

set pstn-cause 102 sip-status 503

retry invite 2

retry bye 2

retry cancel 2

retry options 2

sip-server ipv4:172.30.xxx.49:5345

g729-annexb override

ADAM CRISP · ‎01-26-2012

Hello.

Have you an access list configured on the IP interfaces of the CUBE ?

thanks

panjwani80 · ‎11-08-2012

Hi Troy, did you manage to get this sorted? What was the resolution because I am having exactly same issue with my customer?

Thanks
Aamir

Yort Mantup · ‎11-12-2012

Hello,

I did. Our toll free numbers at the time were with a different carrier outside of Verizon. We had to port the numbers to Verizon. Once Verizon had the numbers, the issues cleared up.

Troy