TERRA-DS1 is an IP/SIP intercom panel for full duplex communication with AEC (Acoustic Echo Cancellation). It is tted with a stainless steel, IP54 waterproof front panel, ensuring durability and quality performance. In additions, it comes with a push-to-talk button, 2 control outputs and 4 control input contacts, which can be used for the control of a variety of devices such as electronic door locks, automatic barriers and lighting. It is SIP compliant making it compatible with SIP based third party IP intercom and phones systems such as AVAYA, CISCO & 3COM. It's an ideal solution for a variety of applications such as live broadcasting, intercommunication etc.. The TERRA-DS1 is easily congured via web interface providing full control over features such as 3rd party command string, scheduler, priority and event management & output levels.