We are using a CTI tool called Avaya which is integrated with salesforce and users can call through a soft phone, they will have click to dial functionalities etc...

One of our user's machine freezes when he is in the middle of the call (thru soft phone) and he could not do anything for 5 mins. I guess it is some issue with Avaya softphone. Did anyone used Avaya before? Did anyone encounter this kind of issue?