| 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 Features 4 voice lines 4 Independent SIP registrations Line status: active line indication, with name and number Menu-driven user interface Shared line appearance Speakerphone Call hold Music on hold Call waiting Caller ID name and number Outbound caller ID blocking Call transfer: attended and blind Three-way call conferencing with local mixing Multiparty conferencing via external conference bridge Automatic redial of last calling and last called numbers On-hook dialing Call pickup: selective and group Call park and unpark Call swap Call back on busy Call blocking: anonymous and selective Call forwarding: unconditional, no answer, on busy Hot line and warm line automatic calling Call logs (60 entries each): made, answered and missed calls Redial from call logs Personal directory with auto-dial (100 entries) Do not disturb Digits dialed with number auto-completion Anonymous caller blocking Uniform Resource Identifier (URI) (IP) dialing support (vanity numbers) On-hook default audio configuration (speakerphone and headset) Multiple ring tones Called number with directory name matching Ability to call number using name: directory matching or via caller ID Subsequent incoming calls show calling name and number Date and time with support for intelligent daylight savings Call start time stored in call logs Call timer Name and identity (text) displayed at startup Distinctive ringing based on calling and called number 10 user-downloadable ring tones Speed dialing, eight entries Configurable dial/numbering plan support Intercom Group paging Network Address Translation (NAT) Traversal, including Simple Traversal of UDP Through NATs (STUN) support DNS SRV and multiple A records for proxy lookup and proxy redundancy Syslog, debug, report generation, and event logging Highly secure call encrypted voice communications support Built-in web server for administration and configuration with multiple security levels Automated 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 defaults Hardware Features Pixel-based display: 128 x 64 monochrome LCD graphical display with backlight Dedicated illuminated buttons for: Audio mute on/off Headset on/off Speakerphone on/off 4-way rocking directional knob for menu navigation Voicemail message waiting indicator (VMWI) light Voicemail message retrieval button Dedicated hold button Settings button for access to feature, setup, and configuration menus Volume control rocking up/down knob controls handset, headset, speaker, ringer Standard 12-button dialing pad High-quality handset and cradle Built-in high-quality microphone and speaker Headset jack: 2.5 mm LED test function Two Ethernet ports with integrated Ethernet switch: 10/100BASE-T RJ-45 802.3af-compliant PoE Optional 5 VDC universal (100-240V) switching; power supply is ordered separately (Cisco PA100) Security Features Password-protected system, preset to factory default Password-protected access to administrator and user-level features HTTPS with factory-installed client certificate HTTP digest: encrypted authentication via MD5 (RFC 1321) Up to 256-bit Advanced Encryption Standard (AES) encryption SIP over Transport Layer Security (TLS) Secure Real-Time Transport Protocol (SRTP) |
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