Download an important update of VoIP SIP SDK for Windows: Change log: – Added ‘Opus’ codec to x64 SDK build – Modified code, which manages RTP ports range per instance. Now it uses only even numbers – Added ability to cleanup … READ MORE

Please download our latest VoIP SIP SDK for Windows. Change log: – Fixed sending tones when received fmtp string in uppercase – “TELEPHONE-EVENT” – Fixed bug with freezing when unplugging usb audio. – Modified methods declaration in dll interface – Fixed ‘codec_g722.dll’, ‘codec_g726.dll’ now they don’t require additional dll – Redesigned … READ MORE