Specification AnsweringSystemType : Digital Brand : Digium BulletPoint1 : Especially designed for high-end office users, Yealink SIP-T54S is an ease-of-use Media IP Phone with a distinctive appearance and structure. BulletPoint2 : With respect to Yealink Optima HD voice technology, T54S enhances its audio quality via adding Opus audio codec, so that it delivers superb audio quality and crystal clear voice communications. BulletPoint3 : Meanwhile, Yealink SIP-T54S is built with Gigabit Ethernet technology, a built-in Bluetooth and a built-in USB 2.0 port, intending to enhance collaboration and productivity. BulletPoint4 : Yealink SIP-T54S is designed to satisfy the users who need for a higher quality IP phone with the improvement of hardware, audio quality, user experience, collaboration efficiency, etc. BulletPoint5 : EASY CONNECTIVITY: User-friendly setup, easy to install and use. Color : Black Color1 : Black Color2 : Silver CompatibleDevices : VoIP services, computer systems, SIP-based telephone networks, other communication devices ConferenceCallCapability : 2 way CustomerPackageType : Standard Packaging DialerType : Single Keypad ExternallyAssignedProductIdentifier1 : 797734601404 ExternallyAssignedProductIdentifier2 : 0797734601404 ExternallyAssignedProductIdentifier3 : 0040232209550 ExternallyAssignedProductIdentifier4 : 0779184064985 ExternallyAssignedProductIdentifier5 : 2516091501268 ExternallyAssignedProductIdentifier6 : 00040232209550 HasCallerIdentification : 1 IncludedComponents1 : Base Unit IncludedComponents2 : Dialer Unit IncludedComponents3 : 2 x Extension Microphones IncludedComponents4 : 6.56' (2.0m) USB Cable IncludedComponents5 : 25' (7.62m) Ethernet Cable IncludedComponents6 : Quick Start Guide ItemDisplayWeight : 3.15 pounds ItemName : Digium IP Phone, D70 6-Line SIP With HD Voice ItemPackageDimensions_Height : 12.7 centimeters ItemPackageDimensions_Length : 34.036 centimeters ItemPackageDimensions_Width : 22.352 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : voip-telephones Manufacturer : Digium Material : Metal Material1 : Plastic Material2 : Metal ModelNumber : 1TELD070LF MultilineOperation : Multi-Line Operation NumberOfItems : 1 PartNumber : 1TELD070LF PhoneTalkTime : 24 hours PowerSourceType : Corded Electric ProductDescription : Digium D70 IP Phone (1TELD070LF) Designed exclusively for Asterisk and Switchvox. The Digium D70 IP phone features unprecedented HD Voice and plug-and-play deployment at a price that fits any budget. With multiple line appearances, context sensitive soft keys, and advanced applications, you can access the information you need instantly. New: This product is eligible for 2 Year Platinum Protection! Digium D70 Features 4.5" 320 x 160 pixel backlit LCD Display Crystal Clear HD Voice 6 line appearance keys 10 x 10 programmable rapid dial/BLF keys 4 features keys and 4 context sensitive soft keys 6 key navigation controller Full-duplex speakerphone w/echo cancellation 2 color LED Message Waiting indicator Dual 10/100 Ethernet Ports Static or DHCP IP address assignment Codec support - G.722 HD, G.711, G.726, G.729AB Protocol support - SIP, SIP v2 Power options - Can be powered via 802.3af Power-over-ethernet (PoE) or external power supply (not included; see option above) Compatibility The Digium D70 IP phone is designed exclusively for use with Asterisk and Switchvox to take full advantage of flexibility and customizations ProductSiteLaunchDate : 2012-04-12T00:37:03.564Z RecordingCapacity : 16 minutes SupplierDeclaredDgHzRegulation : not_applicable TelephoneType : Corded UnspscCode : 43191511 Voltage : 5 volts WarrantyDescription : Limited warranty