Product Description

The SPA504G 4-Line IP Phone with 2-Port Switch PoE and LCD Display, which is part of the Cisco Small Business Pro Series, is a dependable and affordable IP phone for business or home office use. The Cisco IP Phone has been tested to ensure comprehensive interoperability with equipment from voice over IP (VoIP) infrastructure leaders, enabling service providers to quickly roll out services to their customers.With hundreds of features and configurable service parameters, the Cisco IP Phone caters to the needs of traditional business users with features such as easy station moves and shared line appearances (across local and geographically dispersed locations).The Cisco IP Phone uses standard encryption protocols to perform highly secure remote provisioning and unobtrusive in-service software upgrades. Remote provisioning tools include detailed performance measurement and troubleshooting features, enabling network providers to deliver high-quality support to their subscribers. Remote provisioning also saves service providers the time and expense of managing, preloading and reconfiguring the customer's premises for equipment.Telephony Features4 voice lines4 Independent SIP registrationsLine status: active line indication, with name and numberMenu-driven user interfaceShared line appearanceSpeakerphoneCall holdMusic on holdCall waitingCaller ID name and numberOutbound caller ID blockingCall transfer: attended and blindThree-way call conferencing with local mixingMultiparty conferencing via external conference bridgeAutomatic redial of last calling and last called numbersOn-hook dialingCall pickup: selective and groupCall park and unparkCall swapCall back on busyCall blocking: anonymous and selectiveCall forwarding: unconditional, no answer, on busyHot line and warm line automatic callingCall logs (60 entries each): made, answered and missed callsRedial from call logsPersonal directory with auto-dial (100 entries)Do not disturbDigits dialed with number auto-completionAnonymous caller blockingUniform Resource Identifier (URI) (IP) dialing support (vanity numbers)On-hook default audio configuration (speakerphone and headset)Multiple ring tonesCalled number with directory name matchingAbility to call number using name: directory matching or via caller IDSubsequent incoming calls show calling name and numberDate and time with support for intelligent daylight savingsCall start time stored in call logsCall timerName and identity (text) displayed at startupDistinctive ringing based on calling and called number10 user-downloadable ring tonesSpeed dialing, eight entriesConfigurable dial/numbering plan supportIntercomGroup pagingNetwork Address Translation (NAT) Traversal, including Simple Traversal of UDP Through NATs (STUN) supportDNS SRV and multiple A records for proxy lookup and proxy redundancySyslog, debug, report generation, and event loggingHighly secure call encrypted voice communications supportBuilt-in web server for administration and configuration with multiple security levelsAutomated remote provisioning, multiple methods; up to 256-bit encryption (HTTP, HTTPS, Trivial File Transfer Protocol [TFTP])Option to require administrator password to reset unit to factory defaultsHardware FeaturesPixel-based display: 128 x 64 monochrome LCD graphical display with backlightDedicated illuminated buttons for:Audio mute on/offHeadset on/offSpeakerphone on/off4-way rocking directional knob for menu navigationVoicemail message waiting indicator (VMWI) lightVoicemail message retrieval buttonDedicated hold buttonSettings button for access to feature, setup, and configuration menusVolume control rocking up/down knob controls handset, headset, speaker, ringerStandard 12-button dialing padHigh-quality handset and cradleBuilt-in high-quality microphone and speakerHeadset jack: 2.5 mmLED test functionTwo Ethernet ports with integrated Ethernet switch: 10/100BASE-T RJ-45802.3af-compliant PoEOptional 5 VDC universal (100-240V) switching; power supply is ordered separately (Cisco PA100)Security FeaturesPassword-protected system, preset to factory defaultPassword-protected access to administrator and user-level featuresHTTPS with factory-installed client certificateHTTP digest: encrypted authentication via MD5 (RFC 1321)Up to 256-bit Advanced Encryption Standard (AES) encryptionSIP over Transport Layer Security (TLS)Secure Real-Time Transport Protocol (SRTP)