I've been using VoIP phone for long time wwithout problems. However, lately (since 2 months) the other side almost can't hear me at all. I troublshooted everything without sucess, till I finally tried a different internet connection, and my VoIP worked fine there.
I started using Wireshark to diagnose my internet problem and found some really "bad" stuff in the upstreaming RTP. However, I still don't know what exactly the problem is.
Please take a look and tell me what you think. This is a test call.