I have been having a weird issue where i will be on a call with someone for a varying amount of time when i will all of a sudden hear a fast busy, the other party can still hear me no problem. This has been happening with version 1.2.4, 1.2.5, 1.2.6 as well. It seems to be completely random in nature, as it can happen in 5 minutes or 2 hours.
As a weird and interesting side note, i am using a handy tone 386, as is a buddy of mine. We both experience the same issues with two different servers which would seem to eliminate configuration issues, but we both have the handy tones, with newest code, and newest beta code as well.
As an even weirder thing, it happen earlier today to my buddy and he pressed a key on his keypad and instantly the call we normal again. Go figure. Any ideas as to what could be causing this?