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The Reviews Say...
Try hovering over one of the vertical bars in the graph!
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Release Date
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Dec 2005
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Jan 2007
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Type
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IP Phone
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IP Phone
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Codec
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G.711, G.729A, VAD (Voice Activity Detection), CNG (Comfort Noise Generation)
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G.711, G.723.1, G.729A, VAD (Voice Activity Detection), Dynamic Jitter Buffer
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Protocol
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TFTP, DHCP
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TCP, UDP, TFTP, RTP, RTCP, HTTP, NAT, ARP, SNTP
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QoS
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IEEE 802.1p/Q, VAD
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ToS, RTCP Monitoring, IEEE 802.1p/Q, DiffSer, VAD
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Supplementary Service
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Call Transfer (H.450.2), Call Hold (H.450.4), Call Waiting (H.450.6)
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Call Transfer (H.450.2), Call Hold (H.450.4), Call Pick-up (H.450.5), Call Waiting (H.450.6), Message Waiting Indication (H.450.7), Name Identification (H.450.8), Call Completion Busy / No Reply (CCBS / CCNR) (H.450.9)
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VoIP Signaling Protocol
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MGCP, H.323, SIP
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SIP
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Audio / Video Interfaces
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Headset/ Handset: 2.5mm jack
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Networking Connectivity
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2 x RJ 45 - 10/100 Base-TX (Ethernet)
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2 x RJ 45 - 10/100 Base-TX (Ethernet)
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Display Type
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Monochrome LCD
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Monochrome LCD
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Keyboard
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Numeric Keypad
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Alpha Numeric
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Additional Features
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Voice Mail
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Speaker
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Power Source
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Power over LAN / IEEE 802.3 af / PoE, AC-DC Power Adapter
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AC-DC Power Adapter
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