Question about Connection Quality Monitoring

[apexcompu]

Are there any circumstances where I can expect to see the "Overall Score" be something other than "Unknown' for an external call?
All external calls weather inbound or outbound will have "Unknown" for the Score under "PBX Address" on the external leg which presumably causes the overall score" to be unknown.

I just want to know if is the expected behavior.

This is the same on both hosted by 3CX and on-premise systems. (SIPTrunk is the provider if that matters)

 

[Alejandro_3CX]

Hi, could you please share an example of the quality report, hide the IPs please.

 

[apexcompu]

example of 'Unknown' Connection Quality Report

 

[Alejandro_3CX]

what is the pbx version in this installation? is it running the last version 20.0 Update 6 (Build 724 Release)

From the change log in the sp5 was fixed the following: Fixed the generated results when enabling "Monitor Connection Quality" with scores set to "Unknown."

 

[apexcompu]

That's a good find but yes, this server is up to date. I also get the same results on my hosted by 3CX systems which are automatically updated.

 

[ivank]

example of 'Unknown' Connection Quality Report

The reason for Unknown scoring is listed in the Details section of your screenshot: the SIP trunk doesn't provide RTCP feedback for the RTP stream from PBX. Without it, the PBX cannot tell the quality perceived at the remote end, so it marks the outgoing stream and the whole call as "Unknown".
This shouldn't bother you much, unless you indeed have some complaints. Which you most likely don't as the overall report is very good.
In case you still want to investigate this, you need to make a wireshark capture and speak to the SIP trunk's support.

 

[apexcompu]

Can anyone share what SIP trunk providers do provide RTCP data for each call?
It seems like that's something that might help as a factor when choosing a provider.

 

[apexcompu]

It makes sense that the overall score is 'Unknown' when one or more of the individual scores is unknown, I just wanted to confirm that what I'm seeing is 'normal' when SIPTrunk is the provider.

 

[apexcompu]

I added a trunk from Voxtelesys today, made some test calls and it appears that they also do not provide the RTCP data so I am still curious to know under what circumstances an external call will report the call quality score for all legs.

 

[Kevin@voxtelesys]

I added a trunk from Voxtelesys today, made some test calls and it appears that they also do not provide the RTCP data so I am still curious to know under what circumstances an external call will report the call quality score for all legs.

If you create a ticket on our portal we can enable the stream that 3CX is looking for.