ABTO Software RTP SDK provides a powerful and highly customizable solution to quickly build application with ability to send/receive sound by RTP protocol.
Main features:
- Ability to create multiple independent channels
- Ability to select different sending codec for each channel (G711, G726, G729, GSM, SPEEX)
- Recording in mp3 format
- Playing wav, mp3 files
- Voice detection feature

ABTO Software VoIP SIP SDK is a very useful product combined with a first class service. Thanks to ABTO Software for immediate responses with really useful hints and solutions.
Uwe Markus
