Collecting RTP statistics from DX-80 via http feedback (CE8.3)

[eksantrik]

We are trying to collect RTP statistics such as jitter, packet loss and latency from our endpoints.

Http feedback works partially. We would like the codecs start posting us RTP stats for the ongoing calls as well. Is that possible?

Following is our current feedback config:

xCommand HttpFeedback Register FeedbackSlot:2 Format:JSON ServerUrl: http://10.96.41.11/api/insert Expression[1]:/History/CallLogs/Call Expression[2]:/Status/Call[Status='Connected'] Expression[3]:/Status/H323/Gatekeeper Expression[4]:/Status/SIP/Registration Expression[5]:/Status/MediaChannels Expression[6]:/Event Expression[7]:/Event/Message/Prompt/Response Expression[8]:/Status/Call

As you can see /Status/MediaChannels is included in the list but we are having no luck there.

We also tried to login and collect this information in CLI:

xCommand CallHistory Recents DetailLevel: Full Order:OccurrenceTime

We didn't have any luck there either. The output only has CDR information.

Please advise,

Thanks,

[Manish Gogna]

Hi,

As per the following link

http://www.cisco.com/c/en/us/products/collateral/cloud-systems-management/prime-collaboration/white-paper-c11-735409.html

"The latest Cisco IP Phones (Cisco DX Series and Cisco IP Phone 7800 and 8800 Series devices) as well as future IP phones no longer report MOS."

Manish

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[eksantrik]

I see but what about other metrics? Jitter, packet Loss...

Is it possible to collect these via http feedback?

[Wayne DeNardi]

You could get some of those types of statistics via the relevant xStatus command, eg:

xStatus MediaChannels Call [n] Channel [n] NetStat Jitter
xStatus MediaChannels Call [n] Channel [n] NetStat MaxJitter
xStatus MediaChannels Call [n] Channel [n] NetStat Loss

See the API Reference Guide for your particular software version and endpoint model, ie the above came from the DX80 CE9 API Reference Guide, page 136.

You should be able to get the same values via the similar Feedback expression

Wayne
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[eksantrik]

Thank you, Wayne. I appreciate all the feedback.

I tried to use the /Status/MediaChannels in my http feedback but I was not getting anything back from the phone during or after the call. I tried to use /Status/MediaChannels/Call as the path too but that didn't help either.

Bottomline is that I am trying to collect the call statistics and not able to get it from CUCM CDR records. It gets populated with all NULL for jitter, packet loss and latency.

I need a reliable way to collect this information from my SX and DX phones. I read the API manual and applied the logic but had no luck so far. Do you any other clues for me?

Thanks,