SpecificationsItem SpecificationCommunication Lines 4 (IP, TEL, PS, PC)IP: Communication via IP network, available in peer to peer modeand IP-PBX modeTEL: Communication via telephone linePS: Communication via audio connection to a compatible PortableStationPC: Communication via audio connection to a computerMaximum No. of Parties 3– Main unit user + 2 IP calls (Peer to peer mode only)– Main unit user + 1 IP call + 1 TEL call– Main unit user + 1 IP call + 1 PS call– Main unit user + 1 IP call + 1 PC callVoIP Connection Method SIPVoIP Audio Codec G.722, G.711 (μ-law/A-law), G.729aLAN Interface IEEE802.3/IEEE802.3u (10/100Base-TX)Straight/cross automatic crossover (Auto MDI/MDX)IP Address Mode Automatic (DHCP), manual (static)Dial Mode Tone, pulseSpeaker 1 (Output: 85 dB; Frequency range: 300 Hz–7000 Hz)Built-in Microphone 4 locations, 8 total (Sensitivity area: about 3 m [about 10 ft.])IP Network Interface Jack (LAN) 1 (RJ45)Telephone Interface Jack (LINE) 1 (RJ11)USB Port 1 (USB 2.0, Full speed)SD Memory Card Slot 1 (32 MB–2 GB)Audio Interface Jack (AUDIO IN/OUT) 1 (ø 3.5 mm, monaural)External Wired MIC Jack (EXT MIC1,EXT MIC2)2 (Modular jack)Main Unit Dimensions About 55 mm (H) ´ 275 mm (W) ´ 275 mm (D)About 2 3/16 in. (H)´ 10 1/16 in. (W)´ 10 1/16 in. (D)Main Unit Mass About 1300 g (2.87 lb.)AC Adaptor Input: AC 120 V, 60 HzOutput: DC 9 V 750 mAPoE Interface Compliant with IEEE802.3afPower Consumption Standby mode: about 4.8 WTalk mode: about 6.5 WOperating Environment Temperature: 0 °C–40 °C (32 °F–104 °F)Humidity: Less than 90% (with no condensation)Ambient noise: Less than 50 dBA (recommended)70 Operating Instructions Document Version 2010/02SpecificationsSpecifications