• Dolby Voice software platform

    • Now there's no reason to accept poor audio, awkward interactions, and reduced productivity in conferencing — Dolby Voice focuses our legendary audio expertise on business communications to creatively overcome longstanding challenges and dramatically improve the conferencing experience for everyone.

    • Hear the stunning audio quality of Dolby Voice and the Dolby Conference Phone.

    • Dolby Voice benefits

      • Sets a new standard for sound quality

        Superior sound quality delivers lifelike clarity and nuance — while suppressing background noise — for room, mobile, and desktop participants

      • Encourages participation, even from quiet talkers

        Full-room pickup, when used with the Dolby Conference Phone, captures even quiet voices from anywhere in the room, across rooms of all sizes, so everyone can participate effortlessly.

      • Makes conversations easy to follow

        Voice placement presents each speaker's voice from a distinct location, so participants know who's speaking, and can follow what's being said more easily.

      • Delivers proven engineering for modern collaboration

        Unified communications integration across leading video, web, and communications solutions, with flexibility for spaces from huddle rooms to boardrooms, and for IP and PSTN connections.

    • Introducing Dolby Voice Room

      Our new video conferencing hardware solution intelligently adapts to lighting, motion, acoustics, and voices to give everyone an amazingly natural meeting experience.

      • Breakthrough audio for today's work spaces and work styles

        By combining the insights of our scientists and engineers with a relentlessly practical perspective on conferencing needs and infrastructures, we've developed a breakthrough audio solution. Built from the ground up for today's work spaces and work styles, Dolby Voice® gives people in rooms, at their desks, and on their mobile phones impressively clear audio through technology that actively overcomes common conferencing challenges such as background noise, room echoes, and garbled voices.

        Dolby Voice also makes conversation more natural and more productive by enabling everyone to be heard, and by eliminating the delays and cutoffs that frustrate users and discourage participation. And Dolby Voice makes it easier to follow who's speaking and understand what's being said by making it sound as if each person is speaking from a distinct location, the way it sounds when they are together in one room.

        Through all these innovations, and as shown through testing, Dolby Voice drives significantly improved task efficiency through an experience that participants overwhelmingly prefer to traditional conferencing. Hear a real breakthrough in conferencing with Dolby Voice — the difference is as remarkable as it is powerful.

        How to enable Dolby Voice software

        Dolby Voice is audio software that's integrated into leading video, web, and audio conferencing services. Dolby Voice solutions have proven reliability over billions of hours across a wide variety of providers, networks, and scenarios throughout the world. Contact a Dolby Voice service provider to get set up.

        Find Dolby Voice service providers

        How to use the Dolby Conference Phone

        The Dolby Conference Phone provides excellent audio across rooms of all sizes, with or without a Dolby Voice enabled service. The Dolby Conference Phone captures even quiet voices from anywhere in the room, across rooms of all sizes, even in challenging acoustic environments. One-touch access makes it an ideal device for joining and managing meetings.

        When used with a Dolby Voice enabled service, the audio is further enhanced with stunning clarity, more natural conversation flow, and voice placement, which presents each speaker's voice from a distinct location to make it easier to follow the conversation.

        Learn more

      • Explore Dolby Voice

      • Discover the Dolby Conference Phone

      • Dolby Conference Phone Specifications

        Data Sheet

        Operating Modes

        • IP Phone mode
        • Dolby Voice mode*

        Audio Features Available in Both IP Phone and Dolby Voice Modes

        • Dolby wideband (HD) audio: 160 Hz–8 kHz
        • 20-ft (6.1 m) microphone pickup range
        • Full-room pickup
        • Speaker volume: adjustable to 88 dB SPL peak volume at ½ m (1.6 ft)
        • Full duplex
        • Dolby noise reduction
        • Dynamic leveling
        • Acoustic echo cancellation

        Dolby Voice Mode* Features

        • Preconfigured access to Dolby Voice enabled conferencing services (no need to dial access phone number)
        • One-touch meeting start when phone is in personal mode
        • IP connection to Dolby Voice enabled conferencing services
        • Voice placement: presents each speaker’s voice from a distinct location to make it easier to follow and understand the conversation
        • Viewable roster of meeting attendees and active speaker
        • Touch-screen meeting management: mute/unmute and eject participants, lock meeting

        IP Phone Mode Features

        • For interoperability details, please visit dolby.com/interop.
        • IETF SIP (RFC 3261 and companion RFCs)
        • Audio codecs: G.711a/G.711u/G.722/G.729ab/
        • Local three-way conferencing
        • Conference, join, split, hold, resume, mute
        • Call waiting
        • Call transfer, hold, divert (forward), and pickup
        • Called, calling, connected party information
        • Recent call history
        • Searchable contact directory with touch dialing
        • Do Not Disturb function

        User Interface

        • Touch interface with swipe support
        • 4.3-in. (10 cm) LCD display with 480 × 272 resolution
        • LED halo: blue halo in a Dolby Voice conference; green halo when in an IP telephony call; red halo when muted
        • External tactile keys
        • Mute, volume control

        Network and Provisioning

        • Ethernet 10/100Base-T
        • IP address configuration: DHCP and Static IP IPv4 compatible
        • Time synchronization with SNTP server
        • Bulk provisioning, management, and field-upgradable firmware through Dolby Conference Console software
        • QoS Support: IEEE 802.1p/Q tagging (VLAN), Layer 3 TOS and DSCP
        • RTCP support (RFC 1889)
        • LDAP directory support
        • Web proxy autodetection and proxy autoconfiguration support
        • Supports Dolby Voice and IP telephony calls on separate voice and data VLANs
        • Hardware diagnostics
        • Status and statistics
        • Web proxy auto detection and proxy auto configuration support


        • Transport Layer Security (TLS) for authentication and encryption of SIP signaling
        • SRTP encryption for media
        • IEEE 802.1x Network Access Control


        • IEEE 802.3af Power over Ethernet, Class 3 maximum 13 W

        EMC and Safety Compliance

        • UL60950-1
        • CAN/CSA C22.2, No. 60950-1
        • CE Mark (Directive 2006/95EC; 2004/108/EC; 1999/5/EC; 2011/65/EU, 2012/19EU)
        • FCC (47 CFR Part 15 subpart B and C) Class B ICES-003 Class B; IC RSS-210
        • EN55022 Class B; EN300 328
        • EN55024: EN301 489-1: EN301 489-17 EN60950-1


        • Operating temperature: 32°F–104°F (0°C–40°C)
        • Relative humidity: 20%–85% (noncondensing)
        • Storage temperature: -22°F–131°F (-30°C–55°C)

        Physical Dimensions

        • H × W × D: 2.2 × 11.8 × 12.6 in. (5.6 × 30 × 32 cm)


        • Net: 4 lb (1.8 kg)


        • Arabic, Chinese (traditional and simplified), English, French, German, Hebrew, Italian, Japanese, Korean, Portuguese (European and Brazilian), and Spanish
        • Unicode UTF-8 character support

        Dolby Conference Phone Ships With

        • 1 × PoE conference phone unit
        • 1 × Quick Start Guide
        • 1 × 25-ft (7.6 m) network cable

        Dolby Satellite Microphone Kit (Optional)

        • Pickup range extended by up to 6.5 ft (2.0 m) per Dolby Satellite Microphone
        • Kit ships with 2 × Dolby Satellite Microphones and 2 × 6.5-ft (2.0 m) cables

        *Requires a Dolby Voice enabled conferencing service

         Limited new product warranty: 1 year

        Premier service plans available

        Specifications are subject to change without notice.