SKU: SPA504G
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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