- Supports 6 SIP servers and backup SIP proxy servers
- Max 140 intelligent DSS Keys
- Android 4.2 OS
- Supports high quality video call
- Voice recording during talking
- Flexible dial plan with auto provisioning
万能棋牌ios - Supports third party android applications
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- The monitoring room can see and hear clearly what is happening by using video phone and take the action immediately for the passenger who presses the SOS button.