Grandstream Wave is a FREE softphone application that allows users to make and receive voice calls through up to 6 different business or residential SIP accounts on any Android™ device from anywhere in the world.
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