Intermittent clipping and one way audio

[TMMcN]

Avaya IP Office 9.0 installed 4 years ago. 24 extensions. A couple of months ago, started with intermittent clipping and one way audio on about 2% of the calls, incoming and outgoing. 8 channel PRI with fiber to the building, 15K call volume/month. Carrier has replaced all their onsite equipment, I've replaced the POE switch, reseated cards, grounded unit, etc. There doesn't seem to be a pattern. One call is crystal clear, next has issues, Any ideas?

 

[random192]

Is it possible these issues could be related to the widespread network congestion cause by everyone working remote at the moment? We have several customers with intermittent call quality issues since feb/march.

 

[TMMcN]

This started previous to the Covid madness. I've noticed a degradation of call quality, however, theirs seems to be worse.

 

[rdoubrava]

Are you on the latest version of 9.0 ?.
Are you using VOIP phones ?

 

[TMMcN]

Yes to both, 1616i's. This started happening all at once and is intermittent.

 

[curlycord]

Any update to this?

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[TMMcN]

It went away...
Their phone traffic went through the roof due to Covid and has stayed there, however, the issue has subsided.