Cisco SPA 502G 1-Line IP Phone
1-Line IP Phone with Monochrome backlit display

Cisco Products

Cisco SPA IP Phone 500 Series

Cisco SPA 502G 1-Line IP Phone

#SPA502G
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Overview:

Highlights

For business or home office use
Dependable, Affordable and Feature Rich
Full-featured 1-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 502G 1-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 502G 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 502G.

The Cisco SPA 502G 1-Line IP phone also supports productivity-enhancing features such as VoiceView Express and Cisco XML applications when used with Cisco Unified Communications 500 Series in SPCP mode.

Carrier-Grade Security, Provisioning, and Management

The Cisco SPA 502G 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

One voice line
One SIP registration
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)

Technical Specifications:

Specifications for the Cisco SPA 502G Basic 1-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 502G 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 (RFC 793) 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 VMWI - Voicemail Waiting Indicator, 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-AU, PA100-EU, PA100-UK, PA100-AU Switching type (100-240V) automatic DC output voltage: +5 VDC at 2.0A maximum Power adapter: 100-240V 50-60 Hz (26-34 VA) 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 502G 1-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