CyberData"s new SIP-enabled Talk Back Speaker enables two-way conversations in settings such as classrooms, offices, medical facilities and clinics. A remote call button (which is included for the SIP-enabled version), enables calls to a predetermined extension that can be initiated from the room with the speaker. The new SIP-enabled Push-to-Talk Talkback Speaker also includes a monitor mode function where the speaker may be called from a remote phone that discretely monitors the activity in the room.The Push-To-Talk function for the speaker does the best job of addressing high background noise levels, effectively providing clear two-way communication.The SIP-enabled Talk Back Speaker easily connects into local area networks with a single CAT5/6 cable from your PoE switch. Its small footprint allows the speaker to be mounted almost anywhere with multiple mounting options available.