When installed, the wall-mounted SIP Strobe operates as a visual alerting device. The device can be set up as part of a ring group (call group) with the Strobe engaged as notification of incoming calls. The V3 SIP Strobe now supports voice mailbox Message Waiting indication. Through a web page setup, you can have the V3 SIP Strobe respond to message waiting signals by blinking. When the message has been heard, the strobe stops blinking.