A proprietary soft phone that operates like the PDAs / pocket PCs and smartphones it unifies Voip (based SIP) and cellular ccommunications GSM on mobile GSM/WIFI mobile which is based on the microsoft windows mobile operating system.

The Microsoft ActiveSync based address book present in BeWip is based on the pocket Outlook address book which makes the synchronization easier. BeWip uses STUN protocol to get through certain types of NAT routers Full Cone, Restricted Cone et Port Restricted Cone) present in IP networks. The VoIP part of BeWip is based on the open standard protocol Session Initiation Protocol.