Join is a generic SIP Softphone with support for HD voice and video. Inspired by the idea of BYOD (Bring Your Own Device), Join can work with any SIP compliant IP PBX or VoIP provider. In addition Join can be connected to multiple services at the same time. Join enables VoIP calls over 3G and Wi-FI networks. Wide selection of codecs ensures high quality of both audio and video. Both signalling and media (audio and video) can be encrypted using advanced security techniques (SRTP and TLS). Main Features: -Multiple accounts support with multiple active registrations-Work in background for TCP, UDP and TLS-Encryption for SIP and Audio/Video - SRTP and TLS-Audio codecs including: G.711 (A-Law, u-LAW), G.722 (NB, WB), G.729*, GSM, Silk (NB , MB, HD, UWB), Speex, OPUS -Video codecs including: H264*, H263+, H263, VP8-Various video quality settings according to your network conditions: Very High, High, Good, Low, Very Low -Video Call preview -Speaker, mute and hold-Dialing plan support create your own dial plan rules-International dialing automatically add prefixes to dialled numbers-Instant Messaging (SIP SIMPLE, support for Resource List)-Contacts list integrated with native address book -Favorites-Presence integrated with contacts-Attachments in IM messages-Emoticons-Voicemail indicator (MWI)-Detailed call history -Echo Cancellation-Support for DTMF via SIP INFO and RFC 2833-DNS SRV-STUN and ICE-Rport- compatible with WebRTC*Premium codecs can be purchased in add-ons section. Note:1. You need to have an account from VoIP provider in order to use this software Join Softphone is a standalone application and not a VoIP Service.2. Please, check your cellular operator's terms of agreement to make sure they allow sip calls on their network before using Join Softphone.