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LifeSize Phone 1st Generation HD Audio Conferencing Phone

LifeSize® Phone™ is the High Definition audio conference phone that delivers a revolutionary level of quality to audio conferencing. Better Input. Powered by 16 always-on microphones and patent-pending Circular Microphone Array™ and beam forming technology, LifeSize Phone provides exceptional room coverage over other phones.

Note: The Lifesize Phone, 1st Generation, has now been made end-of-life by Lifesize. Please contact VideoCentric to discuss remaining stock, ex-demonstration and hire availability, or find out more about the Lifesize Phone, 2nd Generation here.

High Definition Audio Communications
LifeSize® Phone™ is the high definition audio conference phone that delivers revolutionary audio conferencing sound quality and room coverage.

High Definition Audio Conferencing to Hear Everyone Clearly
LifeSize Phone enables people to communicate effectively, whether working from a large conference room or a small office setting. For weekly executive and sales conference calls to regular project team meetings, audio conferencing needs to be productive.

Better Input – 2X the Room Coverage
Powered by 16 always-on microphones and exclusive, patent-pending circular microphone array and beam forming technology, LifeSize Phone provides high directivity. With twice the room coverage over existing devices, LifeSize Phone is far more robust than existing systems which typically use directional, gated microphones with only one microphone active at a time.

Better Algorithms – Super Wide-Band Audio up to 16 kHz
True CD quality, super wide-band audio up to 16 kHz uses MPEG4 AAC, the same algorithm used in the popular iPod® and iTunes® products.

Better Output — 10X Lower Distortion
Using a specially designed titanium speaker driver, LifeSize Phone reduces distortion by up to 10X over any other conference phone and results in better intelligibility via extended frequency response — no need for a subwoofer with LifeSize Phone.

Flexible Connectivity – VoIP and Video System Integration
LifeSize Phone provides exceptional VoIP conference phone quality and integration to a host of Enterprise-class IP-PBX systems (SIP and H.323) which are also available through IP-based service providers. Also, use LifeSize Phone as a fully integrated audio solution with LifeSize® Room™ and LifeSize® Team™ video systems. Users can dial video calls or add audio participants from the simple to use touchpad and experience high definition quality, integrated audio conferencing.

IP-PBX Integration Programs
LifeSize Phone is pre-tested and integrated with multiple IP-PBX vendors to ensure the highest quality voice and video solutions tightly integrated with overall business communication’s requirements. Testing is conducted across multiple vendors targeted at supporting a wide range of features. IP-PBX vendors currently in the LifeSize Integration Program include: Cisco, Avaya, Nortel, Siemens, Shoretel, Alcatel, Adtran, Asterisk, Broadsoft, 3COM, Mitel, Interactive Intelligence, PingTel.

The Result
Hear all participants in your audio conference with ease, reduce fatigue and experience improved productivity and decision making.



MPEG-4 AAC algorithms for super wide-band audio up to 16kHz for high fidelity sound. Complete connectivity – VoIP Phone and IP PBX integration and for use with LifeSize video systems High Definition audio conference phone with 16 microphones in a circular array for 2 x room coverage


  • High definition audio conferencing phone
  • Three-way audio conferencing capability
  • 16 kHz super wide-band audio increases clarity and intelligibility
  • 2X the directivity and 2X the room coverage over market leading phones
  • VoIP audio conference phone and integration with Enterprise-class SIP and H.323 IP PBX’s
  • Use stand alone or with LifeSize video systems
  • Innovative circular microphone array with 16 always-on microphones and beam forming for maximum pickup

*IP and video configurations: 100 Hz up to 16 kHz; PSTN narrowband configurations 200 Hz to 3.4kH


Phone Console Specifications

System Speaker
Specially designed titanium speaker driver
1/4 liter tuned ported speaker enclosure
Typical frequency response: 100 Hz to 16 kHz for stand alone phone with IP connection
<0.5% 400 Hz - 20 kHz
<2% 100 Hz - 400 Hz
Volume: adjustable to 90dBA spl @ .5m
No sub-woofer required

System Microphones
Circular Microphone Array with 16 embedded microphones and beam forming with Directivity
Index (DI) greater than 4 for all audio frequencies
No microphone pods required

Large monochromatic LCD display
240 x 64 pixels; .250 mm pitch

Intuitive keypad

VoIP connectivity or video systems integration in one device

Audio Standards
G.711; G.729; G.722; MPEG-4 AAC
SIP: RFC 3261; 3264; 2833
Network Configuration Options
IP Configurations
Standard SIP or H.323 IP PBX or IP service provider implementation

Packet loss concealment
Jitter buffer granularity of 1ms
AEC echo tail of >100 ms

No Mobile Phone or PDA Interference
Designed to reduce or eliminates radio frequency interference when placed adjacent to LifeSize Phone

Systems Management & Maintenance
Web browser management for setup and usage
Inventory and remote management using SNMPv3
LifeSize® Control™ management software on IP network

System Design
Physical Dimensions
Height: 40.89 mm / 1.61 in
Diameter: 286.29 mm / 11.27 in
Weight: 1.34 Kg / 3 lbs

Environmental Data
Operating temperature: 0°C (32°F) to 40°C (104°F)
Operating humidity: 10% to 85%, non-condensing
Storage temperature: -40°C (-40°F) to 70°C (158°F)
Storage humidity: 10% to 90%

LifeSize Phone Package
Tabletop console
Quick start guide
Cables: 1-30 ft. (9.14m) RJ-45 cable to Speakerphone Console
Power over Ethernet (PoE) enabled, 802.3af (PoE Adapter not included).
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