Advance2000 Cloud in Touch SIP internet phone enables you to work with your colleagues and others securely from anywhere with ease. The application can only be used with a valid Advance2000 Cloud in Touch subscription. List of supported features:- Audio with the following codecs: speex (narrow band and wideband), G711 (ulaw,alaw),ILBC, GSM, SILK, G722, OPUS, AAC-ELD- Secured call (SIP TLS/SRTP/ZRTP/DTLS)- Multiple calls- Audio conferencing- Address book integration- Call history- DTMF (telephone tones) support using SIP INFO or RFC2833