TONNET T-Talk Membership Edition is a SIP softphone App with simultaneous voice and video communication. It is transparently integrated through the TONNET telephone system and cloud gateway, and is registered and used with the cloud membership App service provided by TONNET Cloud SIP Server. It can provide you with a convenient cloud communication service that allows you to take mobile voice and video with you and communicate with zero distance in real time.Important notes:The TONNET T-Talk membership version App needs to be used with the TONNET cloud communication service plan. To use it with other SIP servers, you need to purchase the premium advanced account setting function.1. Mobile voice video mobile extension2. Dial and call between extension and App3. Resonance between extension and App call4. After the app answers the incoming call, the call can be held and transferred back to the extension in the office for answering5. SIP video door phone can call App video call6. App and App video call7. Incoming call ringtones can be selected by yourself8. Incoming/outgoing call number record function9. With PA/Mute/Transfer/Hold/Video switch/Redial function10. Codec supports G.711, iLBC11. Video supports H.264, .263, VP812. App group management interface function, which can manage the use permissions of App extension numbers in the group13. App extension can set the extension number by yourself14. Purchase premium advanced account setting function (NTD$750), you can register for other SIP servers to use•FEATURES:-Easy to configure:-Flexible Codec selection and prioritization;-Authentication Username;-Dial plan;-Selectable ringtone;-Acoustic Echo Cancellation / Automatic Microphone Gain Control;-Highly interoperable.• Telephony/Communications Features:-Make and Receive VoIP Calls over Wi-Fi and 3G;-Audio routing (Loudspeaker / Handset / Bluetooth / Wired Headset) / Mute;-Access to the native contact list;-Call History / Contact management;-Hold / Resume / Redial;-• Codecs:-Included: G.711 (uLaw & ALaw), iLBC; H.263, H.264, VP8-Support for UDP and TCP.• Other:-Call Waiting / 2nd Call / Call Toggle / Call Transfer;-Secured SIP Transport (TLS);-Secured Encrypted Media (SRTP) with SDES;