Description: osip, exosip, ortp ... is the phone in the network is widely used in several open source libraries. Here is the VC7 environment has been compiled lib files and dll files in the windows environment, can be used directly without the need to re-compile troubles.
File list (Check if you may need any files):
lib&dll
.......\eXosip2.lib
.......\Ortp.lib
.......\osip2.dll
.......\osip2.lib
.......\osipparser2.dll
.......\osipparser2.lib