Cisco SPA 504G 4-Line IP Phone
4-Line IP Phone with 2-Port Switch, PoE and LCD Display

Overview:

Highlights

• 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® SPA 500S 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

Part of the Cisco Small Business Pro Series, the SIP-based Cisco SPA 504G 4-Line 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 competitive, feature-rich services to their customers.

With hundreds of features and configurable service parameters, the Cisco SPA 504G addresses the requirements of traditional business users while building on the advantages of IP telephony. Features such as easy station moves and shared line appearances (across local and geographically dispersed locations) are just some of the many advantages of the SPA 504G.

The Cisco SPA 504G 4-Line IP phone also supports productivity-enhancing features such as VoiceView Express and Cisco XML applications when used with the Cisco Unified Communications 500 Series in SPCP mode.

Carrier-Grade Security, Provisioning, and Management

The Cisco SPA 504G 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 customer premises equipment.

Features:

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)

Technical Specifications:

Specifications for the Cisco SPA 504G Basic 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 SPA 504 at the time of provisioning.
Data networking	MAC address (IEEE 802.3) IPv4 (RFC 791) Address Resolution Protocol (ARP) DNS: A record (RFC 1706), SRV record (RFC 2782) Dynamic Host Configuration Protocol (DHCP) client (RFC 2131) Internet Control Message Protocol (ICMP) (RFC 792) TCP (RFC793) User Datagram Protocol (UDP) (RFC 768) Real-Time Transport Protocol (RTP) (RFC 1889, 1890) Real-Time Control Protocol (RTCP) (RFC 1889) Differentiated Services (DiffServ) (RFC 2475) Type of service (ToS) (RFC 791, 1349) VLAN tagging 802.1p/Q: Layer 2 quality of service (QoS) Simple Network Time Protocol (SNTP) (RFC 2030)
Voice gateway	SIP version 2 (RFC 3261, 3262, 3263, 3264) SPCP with the Cisco Unified Communications 500 Series SIP proxy redundancy: dynamic via DNS SRV, A records Reregistration with primary SIP proxy server SIP support in NAT networks (including STUN) SIPFrag (RFC 3420) Secure (encrypted) calling via SRTP Codec name assignment Voice algorithms: G.711 (A-law and μ-law) G.726 (16/24/32/40 kbps) G.729 A G.722 Dynamic payload support Adjustable audio frames per packet Dual-tone multifrequency (DTMF), in-band and out-of-band (RFC 2833) (SIP INFO) Flexible dial plan support with interdigit timers IP address/URI dialing support Call progress tone generation Jitter buffer: adaptive Frame loss concealment Comfort Noise Generation (CNG) Voice activity detection (VAD) with silence suppression Attenuation/gain adjustments Message waiting indicator (MWI) tones VMWI via NOTIFY, SUBSCRIBE Caller ID support (name and number) Third-party call control (RFC 3725)
Provisioning, administration, and maintenance	Integrated web server provides web-based administration and configuration Telephone keypad configuration via display menu/navigation Automated provisioning and upgrade via HTTPS, HTTP, TFTP Asynchronous notification of upgrade availability via NOTIFY Nonintrusive in-service upgrades Report generation and event logging Statistics transmitted in BYE message Syslog and debug server records: configurable per line
Power supply	Power supply is optional and is purchased separately Models: Cisco PA100-NA, PA100-EU, PA100-UK, PA100-AU DC output voltage: +5 VDC at 2.0A maximum Switching power adapter: 100-240V 50-60 Hz AC input
Physical interfaces	Two 10/100BASE-T RJ-45 Ethernet ports (IEEE 802.3) Handset: RJ-9 connector Built-in speakerphone and microphone Headset 2.5mm jack
Indicator lights/LEDs	Speakerphone on/off button with LED Headset on/off button with LED Mute button with LED Message waiting LED
Body dimensions (W x H x D)	8.42 x 8.35. x 1.73 in. (214 x 212 x 44 mm)
Unit weight	2.00 lb ( 0.9 kg)
Operating temperature	32° ~ 104°F (0° ~ 40°C)
Storage temperature	-4° ~ 158°F (-20° ~ 70°C)
Operating humidity	5% to 95% noncondensing
Storage humidity	5% to 95% noncondensing
Model	Voice Lines	Ethernet Ports	High- Resolution Graphical Display	PoE Support
SPA 501G	8	2	No	Yes
SPA 502G	1	2	Yes	Yes
SPA 504G	4	2	Yes	Yes
SPA 508G	8	2	Yes	Yes
SPA 509G	12	2	Yes	Yes
SPA 525G	5	2	Color	Yes

Documentation

• Quick-Start Installation and Configuration Guide
• User Guide
• Administration Guide
• Provisioning Guide (for service providers only)

Package Contents

• Cisco SPA 504G 4-Line IP Phone, handset, and stand
• Handset cord
• RJ-45 Ethernet cable
• Quick-Start Guide
• CD

Compare Models:

Cisco SPA 500 Series IP Phones
Models	Key Benefits	Ideal Location
	SPA 525G 5-Line IP Phone 5 Line Color backlit display Bluetooth WiFi MP3 and picture player	Executives offices, difficult to wire workspaces, and locations where looks and aesthetics are important
	SPA 509G 12-Line IP Phone with Programmable Keys 12 Line Monochrome backlit display	Managers and administrators who need extra keys for speed dials, shared lines, and monitor lines
	SPA 508G 8-Line IP Phone 8 Line Monochrome backlit display	Managers and administrators who need extra keys for speed dials, shared lines, and monitor lines
	SPA 504G 4-Line IP Phone 4 Line Monochrome backlit display	Power users including sales and customer service representatives who depend on the phone to get their jobs done
	SPA 502G 2-Line IP Phone 2 Line Monochrome backlit display	Employees who require a lot from their phones, but don't need all the buttons
	SPA 501G Basic 8-Line IP Phone 8 Line Paper label	Areas with basic phone needs such as hallways, breakrooms, lobbies, warehouses, factory floors, retail locations, and more
	SPA 500S Expansion Module 32 programmable buttons Multicolored LEDs for illuminated line-status monitoring	Managers, administrators, and operators who want to simplify incoming call handling by quickly directing calls and centrally monitoring lines

Documentation:

Download the Cisco SPA 504G IP Phone Datasheet (PDF).