Apps like PrivateWave Professional

Here are some great alternatives to PrivateWave Professional by BV Tech SPA :
StealthTalk: Private Messenger
StealthTalk: Private Messenger
★4.1
Linphone
Linphone
★3.5
Simlar - secure calls
Simlar - secure calls
★4.1
Secure Call
Secure Call
★3.3
Sipnetic
Sipnetic
★4.0
get2Clouds Priv. Communicator
get2Clouds Priv. Communicator
★4.1
FonTel - Call Recorder
FonTel - Call Recorder
★3.2
Cellcrypt Enterprise
Cellcrypt Enterprise
★3.4
HelloByte Dialer
HelloByte Dialer
★3.7
Wispr
Wispr
★3.8
Silent Phone - Secure Calling
Silent Phone - Secure Calling
★3.9
Call.Me
Call.Me
★3.5
Comera - Video Calls & Chat
Comera - Video Calls & Chat
★4.2
AGEphone
AGEphone
★5.0
GoldKey Phone
GoldKey Phone
★4.1
Pryvate Messenger
Pryvate Messenger
★3.6