The Cisco SPA508G is a full-featured 8-line IP phone designed for small to medium-sized businesses. It offers high-quality voice over IP (VoIP) with support for up to 8 lines, a high-resolution graphical display, Power over Ethernet (PoE), a built-in Ethernet switch, and advanced telephony features including call hold, transfer, conference, and more. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.
Key components: High-resolution graphical LCD, 8 programmable line keys, 4-way navigation cluster, Speakerphone, Handset with headset jack, Ethernet ports (LAN and PC).
| Feature | Description |
|---|---|
| 8 Programmable Line Keys | For handling multiple calls and line appearances |
| High-Resolution Graphical Display | 128 x 64 pixel backlit LCD for call information and menus |
| Power over Ethernet (PoE) | Receives power through Ethernet cable (IEEE 802.3af) |
| Built-in 2-port Ethernet Switch | Connects to network and a downstream device (e.g., PC) |
| Speakerphone | Full-duplex hands-free communication |
| Headset Port | 2.5mm jack for optional headset |
| Hold Button | Places active call on hold |
| Conference Button | Initiates 3-way conference calls |
| Transfer Button | Transfers calls to another extension |
| Volume Control | Adjusts handset, speakerphone, and ringer volume |
Unpack and inspect contents. Place phone on stable surface near network outlet.
WARNING! Use only approved power adapter. Ensure cables are securely connected to avoid damage.
Power on phone; it will attempt to boot and obtain network configuration.
CAUTION! Handle phone with care. Do not expose to liquids or extreme temperatures.
Access settings via phone's LCD menu or web-based administration interface. Front Panel: LINE keys, NAVIGATION cluster, SPEAKERPHONE, HOLD, TRANSFER, CONFERENCE, VOLUME controls.
Key Functions: Use NAVIGATION button to scroll menus. Press SELECT to choose. LINE keys light to indicate status (steady=idle, blinking=incoming call, fast blink=active call).
Basic Settings via LCD Menu: Network configuration, Time/Date, Ring Tones, Audio Settings (Volume, Tone). Advanced Settings via Web Interface: SIP Parameters, Dial Plan, Security, Firmware Upgrade.
Network: LAN port to switch/router. PC: PC port to computer Ethernet port. Headset: Optional 2.5mm headset to headset jack.
Tip: Label cables for easy identification during troubleshooting.
Supports standard and advanced VoIP calling features.
WARNING! Do not use excessive force on buttons or keys. Use phone in a well-ventilated area.
Adjustable Ring Tones and Volume: Set different rings per line and adjust volume levels. Visual Alerts: Flashing LINE keys for incoming calls. Headset Mode: For hands-free operation.
Disconnect power before cleaning. Use a soft, dry cloth to wipe exterior. Do not use liquid or aerosol cleaners.
CAUTION! Avoid getting moisture into openings. Keep phone away from direct heat sources.
FCC Part 15: Class B digital device; complies with limits for residential installation. CE Mark: Conforms to European directives. Copyright and trademarks owned by Cisco Systems, Inc. For technical support, visit www.cisco.com/support or contact your service provider.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No power/display blank | Power source | Check power adapter connection; verify PoE switch is powered; try different outlet. |
| No dial tone | Network/SIP registration | Check Ethernet cable; verify IP address; confirm SIP credentials are correct. |
| One-way or no audio | Network/Firewall | Check router/firewall settings for SIP ALG and open RTP ports. |
| Cannot access web interface | IP address/network | Verify phone's IP address; ensure PC is on same subnet. |
| Poor call quality | Network congestion | Check network bandwidth; prioritize VoIP traffic (QoS). |
Reset: To factory defaults, press and hold # key during boot-up (check manual for exact procedure).
Service: Refer to www.cisco.com/support or contact your VoIP service provider.