I know someone who had a similiar issue... their issue was that forwarding to the voicemail wasn't activated so when they pressed the end button when the fone rang the party calling would get a quick busy signal where as if the fone rang 4 or 5 times it would go to the voicemail. After turning the voicemail forwading on all seems to be fine he hasn't had any issues since.
ok, so i set up all my call forwarding just to be safe even though I dont need to... and I have figured out the poblem.
if i push the "reject" or "forward" (depending on forwarding settings) soft-key they get shot to voicemail. if i push the end call button (red key) then they get sent to the "at the subscribers request this phone does not accept incoming calls"
You're not alone... After talking to a few people they have the same thing or something similiar to it.... I find it odd as that doesn't happen to me; but hey look on the brightside this way if someone calls and you don't care to speak to them or want them to leave a message you can dump the call all together. All they hear is "At the subscribers request this phone does not accept incoming calls"
I just tried this out with my S55 and here's what happened:
If I don't pick up, the call will go to voicemail.
If I reject the call with the red key, the caller will get a fast busy signal....
If I reject the call using the reject key, the call will go to voicemail.