[Vorbis] source code

[Thomas Bosch]

hello dear developers,

i'm a student of computer science at the technical university of berlin.

i'm on my exam and i have to implement an "perfect" 
hifi-internet-telephone :-) ... at this point i thought of vorbis and the 
ogg-vorbis codec to integrate this codec in my tool ...

the questions i have are:
is the source code lying on a free server to download it?
is there a low-delay option in ogg-vorbis?
how much is the delay at i.e. 64kbit/s quality?
are there any restrictions in including the codec into my software?

thanx