Shareware: You can try this program, but this version has some limited features or time usage restrictions. You should purchase it in order to remove those limits.
H323 VoIP SDK provides a powerful and highly customizable solution to quickly add H.323 based dial and receive phone calls features in your software applications. It accelerates the development of H.323 compliant soft phone with a fully-customizable user interface and brand name.
The Abto LLC VoIP H.323 SDK contains a high performance VoIP conferencing client capable of delivering crystal clear sound even for both low and hig ...