I have 2 voip services (2 different providers) both are really bad to me. Can't do anything to improve bandwidth and conversations are horrible. I hear them but they don't hear me or hear me too bad. Upstream seems to be a problem here but can't do any better. However I had another adsl 1 month ago and wasn't so bad. In between I had to set up the network using a router encore 114 as ppoe, and a Huawei mt880 modem as bridge.
Voip support doesn't help me. But they recommend to use QOS on router to avoid package loss. They don't specify anything about it and I don't see any place to modify any configuration on modem. (I can log as admin 192.168.1.1 but I don't have a "QOS" link or anything similar"
I'm using eyebeam or xtenlite. I used to have a pap2 from linksys but didn't help me at all either so I sold it.
BTW is there any eyebeam configuration that helps? Tried using only GSM codec, only g729, and mixes. No difference.