Cisco SPA504G

• For business or home office use

• Full-featured 4-line business-class IP phone supporting Power over Ethernet (PoE)

• Monochrome backlit display for ease of use, aesthetics, and on-screen applications

• Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX)

• Dual switched Ethernet ports for connecting a computer behind the phone, reducing cabling costs

• Wideband audio for unsurpassed voice clarity and enhanced speaker quality

• Easy installation and highly secure remote provisioning, as well as menu-based and web-based configuration

• Supports up to two Cisco^® SPA500S Expansion Module, adding up to 64 additional buttons*

• Supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) with the Cisco Unified Communications 500 Series for Small Business

Comprehensive Interoperability and SIP-Based Feature Set

Carrier-Grade Security, Provisioning, and Management

Figure 1. Cisco SPA504G 4-Line IP Phone

Telephony Features

• Four voice lines

• Four 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 with selectable ring tone per line

• 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)

Regulatory Compliance

• FCC (Part 15, Class B), CE Mark, A-Tick, C-Tick, Telepermit, UL, CB

• 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)

Documentation

• Quick-Start Installation and Configuration Guide

• User Guide

• Administration Guide

• Provisioning Guide (for service providers only)

Package Contents

• Cisco SPA504G 4-Line IP phone, handset, and stand

• Handset cord

• RJ-45 Ethernet cable

• Quick-Start Guide

• CD

Specifications

Table 1. Specifications for the Cisco SPA504G 4-Line IP Phone

Note: Many features are programmable within a defined range or list of options. Please see the SPA Administration Guide for details. The target configuration profile is uploaded to the SPA504 at the time of provisioning.

Table 2. Cisco SPA500 Series IP Phone Comparison

Table 3. Ordering Information

Table 4. Optional Accessories

Service and Support