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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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Oct 2008
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May 2009
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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.723.1, G.722, G.729AB, G.726, G.711u/A
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G.723.1,G.722,G.729AB, G.726,G.711u/A
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Protocol
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TCP, UDP, TFTP, RTP, RTCP, HTTP, DHCP, ICMP, PPPoE, ARP
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QoS
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ToS, IEEE 802.1p/Q
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IEEE 802.1p/Q, ToS
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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 Hold (H.450.4), Call Waiting (H.450.6)
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VoIP Signaling Protocol
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SIP
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SIP
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Audio / Video Interfaces
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Headset/ Handset: RJ 22, Headset/ Handset: 2.5mm jack
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Networking Connectivity
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1 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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Color LCD
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Monochrome LCD
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Keyboard
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Alpha Numeric
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Alpha Numeric
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Additional Features
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Phone Book, Speaker, DTMF Tone Detection, Mute, Volume Control, Ringtones: True Tones
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Hand Free Mode, Call History, Voice Mail, Caller ID Presentation, Mute, Volume Control, Ringtones: True Tones
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Power Source
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AC-DC Power Adapter
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Via USB
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