[Asterisk-Users] What is the highest quality codec I can use for recording voice messages?

[Fats Neutron]

I have looked at the codec's available but I don't know how get the highest
quality recorded message.

If a user calls in over the normal telephone network is this limited to the
carriers codec or the codec at the asterisk side?

Would I get a higher quality result using VoIP rather than the normal
network?

Any help would be appreciated.

Thanks
Fats.