It might be worthwhile investigating a proper omnidirectional microphone for use a in relatively quiet room, might improve sound quality a lot. I'll research a bit.
Can anyone remember how to show your own (well SIM) number on a Nokia (6131) phone? I've seen it on some Nokia's but can't seem to find it on this one.
aye on the sennheisers. i love my shure in-ear-monitors for office and traveling, the noise blocking characteristics is very good and the sound quality is remarkable