This app is complimentary from Grandstream side. Wave is a free Android app with which users can make and receive calls for 6 different business accounts from their android device. Even residential accounts can leverage this free app.

    Grandstream Wave

    • Supports G.711µ/a, G.722 (HD-audio), G.726-32, G.729, GSM, iLBC, Opus and Speex codecs
    • Security features include SIP over TLS and 128/256-bit SRTP
    • Up to 6-way audio conference, and 24 virtual BLF keys
    • Supports 6 SIP accounts