Voice quality issue - is there a checklist to follow

[ad27singh]

Hi All,

I'm trying to learn if we can have some defined path to follow when trying to troubleshoot "random"  voice quality issue - echo/underwater sounds | call drops. Is there a sequence of things which should be checked when dealing with such issues.

Like check

1.ping round trip time 

2.ping hop to hop

/

Also can a wireshark capture help isolate the issue ?

what all we should be checking in the wireshark captures for voice quality issue ?

or any other free tools which can be used for isolating such issues as we know if there is a vocie quality issue it be related to mostly packet loss or drop. This is my understanding and it be great to hear from everyone what all check they do when faced such issues.

I'm quite new to the concepts so bear with my knowledge and understanding of the things.

[Manish Gogna]

Some good docs below specific to voice quality troubleshooting

https://supportforums.cisco.com/document/101961/how-troubleshoot-voice-quality-issues-ucm-environment-bad-sound-no-audio

http://www.cisco.com/c/en/us/support/docs/voice/voice-quality/30141-symptoms.html

http://www.cisco.com/c/en/us/tech/voice/voice-quality/tsd-technology-support-troubleshooting-technotes-list.html

HTH

Manish

[ad27singh]

Thanks Manish...really helpful documents with very useful commands.

I have one more question how can IP SLA help in the voice network with jitter issue ?

[Manish Gogna]

Hi,

You can check IP SLA config, features and limitations related information here

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipsla/configuration/15-mt/sla-15-mt-book/sla_udp_jitter_voip.html

Manish

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