[Serusers] media proxy functions

[proson cheng]

Hi all,

1) can anyone tell me what are the differences between

client_nat_test("1");
client_nat_test("2"):
and client_nat_test("3") ?

what do the numbers in brackets represent?

I tried to find some manual of this module but none was found and the 
documents that iptel provided were very brief.

2.) does anyone has the manual for the media proxy modules?

thanks

proson