Bad incoming call quality

[phonetech2012]

We have a IPO using a PRI circuit, IP sets with Avaya POE switches, no vlan since its only the IP sets on our Avaya network. Some users are reporting echoes and voice dropping on calls coming in. No reports on internal calls.
Any ideas? I do not get any alarms in the sys monitor other then some minor jitter.

 

[janni78]

Is it a real PRI circut or a converted SIP trunk?

"Trying is the first step to failure..." - Homer

 

[phonetech2012]

Regular pri. We had the same circuit on our old option 11. This happens on inbound and outbound calls. Thanks

 

[cpolley1]

Have you tried setting up QOS on the switches?

Here is a pdf

https://support.avaya.com/css/P8/documents/100140053

Clint

http://www.politoninc.com

 

[phonetech2012]

Thanks, we will check that out. I thought QOS was set up but I could be wrong.