Cisco SPA112 2 Port Phone Adapter User Manual

Introduction

The Cisco SPA112 2 Port Phone Adapter provides high-quality, feature-rich Voice over IP (VoIP) service through a broadband Internet connection. This adapter allows you to connect two standard analog telephones or fax machines to a VoIP service provider, enabling clear voice calls and reliable fax connections while simultaneously using your Internet connection. It supports various Internet VoIP provider features such as caller ID, call waiting, voicemail, and call forwarding.

Important Safety Information

Please read and understand all safety instructions before using this product. Failure to follow these instructions may result in electric shock, fire, or other hazards.

• Do not expose the device to water or moisture.
• Do not open or attempt to repair the device. Refer all servicing to qualified personnel.
• Use only the power adapter supplied with the device.
• Ensure proper ventilation around the device to prevent overheating.
• Keep the device away from heat sources and direct sunlight.

Package Contents

Verify that your package contains the following items:

• Cisco SPA112 2 Port Phone Adapter
• Power Adapter
• Ethernet Cable
• Quick Start Guide (not included in this digital manual)

Product Overview

The Cisco SPA112 is a compact device designed to connect analog phones to a VoIP network. It features two phone ports and one Internet port.

Front Panel

Figure 1: Front view of the Cisco SPA112, showing the Cisco logo and indicator lights for phone lines, internet, and power.

The front panel includes indicator lights that provide status information:

• Phone 1/2 LEDs: Indicate the status of the phone lines. Lit when a phone is off-hook or in use.
• Internet LED: Indicates the status of the Internet connection. Lit when connected and active.
• Power LED: Indicates the power status of the device. Lit when the device is powered on.

Rear Panel

Figure 2: Rear view of the Cisco SPA112, showing the Reset button, Phone 1 and Phone 2 ports, Internet port, and DC 5V Power input.

The rear panel contains all the connection ports:

• RESET Button: Used to reset the device to factory default settings.
• PHONE 1/2 Ports (RJ-11): Connect analog telephones or fax machines.
• INTERNET Port (RJ-45): Connects to your router or broadband modem.
• DC 5V POWER Input: Connects to the supplied power adapter.

Setup and Installation

Follow these steps to set up your Cisco SPA112 adapter.

Step 1: Physical Connections

1. Connect the Internet Cable: Connect one end of the Ethernet cable to the INTERNET port on the SPA112 and the other end to an available LAN port on your router or broadband modem.
2. Connect Telephones: Connect your analog telephones or fax machines to the PHONE 1 and/or PHONE 2 ports using standard RJ-11 phone cables.
3. Connect Power: Connect the power adapter to the DC 5V POWER input on the SPA112, then plug the adapter into an electrical outlet. The Power LED on the front panel should illuminate.

Figure 3: Diagram showing the Cisco SPA112 connected to a router, power outlet, and an analog phone.

Step 2: Initial Configuration (Accessing the Web Interface)

To configure the SPA112, you will need to access its web-based administration interface. The device typically obtains an IP address automatically from your router via DHCP.

1. Find the Device's IP Address:
   • Connect an analog phone to the PHONE 1 port.
   • Dial **** (four asterisks).
   • When prompted, dial 110# to hear the device's IP address. Note this IP address.
2. Access the Web Interface:
   • Open a web browser on a computer connected to the same network as the SPA112.
   • Enter the IP address you noted in the browser's address bar (e.g., http://192.168.1.100) and press Enter.
   • You will be prompted for a username and password. The default credentials are typically:
     • Username: admin
     • Password: admin
3. Configure VoIP Service:

   Once logged in, navigate to the "Voice" or "Line" settings to enter the details provided by your VoIP service provider (e.g., SIP proxy, user ID, password). Refer to your VoIP provider's documentation for specific settings.

Operating Instructions

After successful setup and configuration, your Cisco SPA112 is ready for use.

Making and Receiving Calls

• To Make a Call: Pick up the connected analog phone. You should hear a dial tone. Dial the desired phone number.
• To Receive a Call: When your phone rings, pick up the handset to answer.

Using Fax Machines

The SPA112 supports fax machines connected to its phone ports. For optimal fax performance, ensure your VoIP service provider supports T.38 faxing and that it is enabled in the adapter's configuration if necessary.

VoIP Features

The SPA112 supports various VoIP features depending on your service provider, including:

• Caller ID
• Call Waiting
• Voicemail
• Call Forwarding
• Distinctive Ring
• Three-Way Conferencing

Consult your VoIP service provider for details on how to activate and use these features.

Maintenance

The Cisco SPA112 is designed for reliable operation with minimal maintenance.

• Cleaning: Use a soft, dry cloth to clean the device. Do not use liquid or aerosol cleaners.
• Firmware Updates: Periodically check the Cisco support website for firmware updates. Firmware updates can improve performance, add features, or fix bugs. Follow the instructions provided by Cisco for updating firmware.
• Restarting the Device: If you experience issues, try restarting the device by unplugging the power adapter, waiting 10 seconds, and then plugging it back in.

Troubleshooting

This section addresses common issues you might encounter with your SPA112.

No Dial Tone

• Check Power: Ensure the power adapter is securely connected and the Power LED is lit.
• Check Phone Connection: Verify that the analog phone is correctly plugged into a PHONE port.
• Check Internet Connection: Ensure the Internet LED is lit, indicating an active network connection.
• VoIP Service Status: Confirm your VoIP service is active and configured correctly in the adapter's web interface.

Cannot Make or Receive Calls

• Verify VoIP Configuration: Double-check all SIP settings (proxy, user ID, password) in the web interface against your VoIP provider's information.
• Network Connectivity: Ensure your router and internet connection are working correctly. Try accessing other websites from a connected computer.
• Firewall Issues: Your router's firewall might be blocking VoIP traffic. Consult your router's manual or IT administrator to ensure necessary ports are open (typically UDP ports 5060 for SIP and 10000-20000 for RTP).
• Reboot Devices: Try rebooting your modem, router, and the SPA112 in sequence.

Poor Call Quality (Echo, Jitter, Dropped Calls)

• Internet Bandwidth: Ensure you have sufficient internet bandwidth, especially during peak usage. Other network activities (streaming, large downloads) can impact call quality.
• Network Congestion: If possible, connect the SPA112 directly to your router via Ethernet, avoiding Wi-Fi extenders or powerline adapters.
• QoS Settings: If your router supports Quality of Service (QoS), configure it to prioritize VoIP traffic.
• VoIP Provider: Contact your VoIP service provider to check for any service-side issues or recommended settings.

Specifications

Warranty Information

The Cisco SPA112 2 Port Phone Adapter comes with a 30-day warranty from the seller and a manufacturer's warranty. For specific terms and conditions, please refer to the documentation provided with your purchase or visit the official Cisco support website.

Customer Support

For further assistance, technical support, or to download the latest firmware and documentation, please visit the official Cisco support website. You may also contact your VoIP service provider for configuration-specific support.

Cisco Support Website: www.cisco.com/support