It doesn't support AMR WB ..Didn't find that codec in the list
Simple clear voice and love it, the dialer tones are too loud , it could use system or media volume that can control by user.
Minor Bug Resolving.
Grandstream Networks announces Wave, a free Video VoIP app for SIP-based calling
Caller ID for unknown calls, photo-filled address book, & all-in-one dialer 📞😊
The contacts, dialer, & call log app that organizes your contacts & blocks calls
📱Caller ID & Block, Call Recorder, Phone Number Lookup & Detailed Contacts!📱