Product Specifications

Brand Name: Cisco
Manufacturer Part Number: SPA504G
Manufacturer Website Address: http://www.cisco.com
Manufacturer: Cisco Systems, Inc Marketing
Text: The Cisco SPA 504G is a 4-line desktop IP phone with display, 802.3af Power over Ethernet (PoE), and PC port.
Product Model: SPA 504G
Product Name: SPA 504G IP Phone
Product Series: 500
Product Type: IP Phone
Interfaces/Ports
Headset Port: Yes
Network (RJ-45): Yes
Number of Network (RJ-45) Ports: 2
Management & Protocols
Communication Protocols: SIP v2
 Additional Information: PoE support High Quality Handset and Cradle Built-In High Quality Microphone and Speaker Adaptive Jitter Buffer VAD Voice Activity Detection with Silence Suppression Provisioning, Administration, and Maintenance Speakerphone Call Hold Music on Hold Call Waiting Caller ID Name and Number and Outbound Caller ID Blocking Outbound Caller ID Blocking Call Transfer - Attended and Blind Three Way Call Conferencing with Local Mixing Connects to External Conference Bridge for Multi-party Conferencing Automatic Redial of Last Calling and Last Called Numbers On-Hook Dialing Call Pick Up Call Blocking Do Not Disturb Intercom Call
Forwarding Package Contents: SPA504G IP Phone Stand Handset Cord RJ45 Ethernet Cable Quick Installation Guide
OTHER FEATURES
Color: Black
Compatibility: The SPA 504G supports the following with UC 500.
• WebEx PhoneConnect
• Time Card View
• Live Record / Live Replay,
• Single Number Reach
• VoiceView Express HEADSETS SUPPORTED: The SPA 504G has a 2.5-mm standard 4-segment phone jack. It supports most universal 2.5-mm wired headsets (non Nokia versions) such as the Jabra C250/C500 and the Plantronics MX250
Network Features
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)
Operating Temperature: 0 to 40 °C
Other Features
TELEPHONY FEATURES
• Four voice lines
• Line status: active line indication, with name and number
• Menu-driven user interface
• Speakerphone
• Call 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
• 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 INDICATOR LIGHTS/LEDs
• Speakerphone on/off button with LED
• Headset on/off button with LED
• Mute button with LED
• Message waiting
LED Package Contents
• Cisco SPA504G 4-Line IP phone, handset, and stand
• Handset cord
• RJ-45 Ethernet cable
• Quick-Start Guide
• CD Packaged Quantity: 1
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)
VOICE FEATURES
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)
PHONE FEATURES
Button Type: Dedicated Hold Button
Codec Support: G.711a
Interface Type: 1 x RJ-45
No. of Phone Lines: 4
Ringtone Type: 10
User-Downloadable Signaling Protocol Support: ICMP
POWER FEATURES
PoE Supported: PoE
PRODUCT

Brand Name: Cisco Manufacturer
Web Site: http://www.cisco.com/
Product Model: SPA504G
Product Type: IP Phone
Power Description
Input Voltage: 110 V AC 220 V AC
SWITCH FEATURES
No. of Port: 2
Switch Type: 10/100BASE-T Ethernet
IP Phone Technology: VoIP
Total Number of Phone Lines: 4
Voice Codec: G.711a G.711u G.722 G.723.1 G.726 G.729a

Warranty Information

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