Microsoft Real Time Audio (RTA) technology — Designed for both high-quality wideband and narrowband voice over IP (VoIP) applications
G.722 support — Wideband audio that delivers voice calls with superior audio quality
G.711(A-law, µ-law) support — Provides support for legacy voice encoding
Codecs and Acoustic Performance — Support available for codec and acoustic performance requirements including VAD (Voice activity detection), CNG (Comfort noise generation), AEC (Acoustic echo cancellation), DTMF tone generation/DTMF event RTP payload, Packet loss concealment, Low latency audio packet transmission, Adaptive jitter buffers, Background noise suppression, AGC (Automatic gain control), Dynamic noise reduction and Volume control for each audio output
Handset and Speakerphone Audio outputs — Handset supports wideband and Hearing Aid Compatible (HAC) support. Full duplex speakerphone supports acoustic echo cancellation and provides wideband speaker and microphone.
User Interface and languages — Provides 3.5" TFT Display (320 x 240 pixels) with Unicode character capability. Display features LCD backlight with automatic display dimming on idle. Languages supported: English,French,Spanish,German,Italian,Dutch,Russian,Brazilian Portuguese, Japanese,Korean,Simplified and traditional Chinese, Finnish, Swedish, Norwegian and Danish.
Software features — Basic Mode supports Contacts, Photos,Standard Enterprise IP-PBX features such as CAC, Survivability, E911 (US only), call park, etc.. Also provides teleworker support. Enhanced Mode provides individual voice mail listings, calendar and Join Conference features.
LED — Provides LEDs including Mute, Speaker, and Ringing/In Call/Hold.