The CyberData SIP-enabled V3 SIP Office Ringer is a Power-over-Ethernet (PoE 802.3af) and Voice-over-IP (VoIP) notification device that easily connects into existing local area networks (LANs) with a single cable connection. The V3 SIP Office Ringer provides a user uploadable audible ring indication when part of a ring group. The SIP Office Ringer also supports direct SIP voice paging and priority-based Multicast broadcasts.