Specifications: Protocol: SIP RFC 3261 Compatible
Ethernet I/F: 10/100 Mbps
Power Input: PoE 802.3af or +5V at 1A
Operating Temperature: -10 degrees C to 50 degrees C(14 degrees F to 122 degrees F)
Payload Types: G711 A-Law and u-Law
Regulatory Compliance: FCC Class A, UL 60950