1. Product Overview
The Avaya 1608-I IP Phone is a value-edition deskphone designed for everyday use in a business environment. It provides essential communication features, including multiple line appearances, a context-sensitive user interface, and a high-quality speakerphone. This manual provides instructions for setting up, operating, and maintaining your Avaya 1608-I IP Phone.

Figure 1: Top-down view of the Avaya 1608-I IP Phone, showing the handset, display, and keypad layout.

Figure 2: Angled view of the Avaya 1608-I IP Phone, illustrating its ergonomic design with the integrated desk stand.
2. Package Contents
Before proceeding with the setup, please verify that all items are present in the package:
- Avaya 1608-I IP Phone unit
- Handset
- Handset cord
- Ethernet cable
- Desk stand (pre-attached or separate)
- Quick Start Guide (if included)
Note: A power supply unit is typically not included as this phone is designed to be powered via Power over Ethernet (PoE). If PoE is not available, a separate Avaya-compatible power adapter must be purchased.
3. Setup
3.1 Connecting the Phone
- Connect the Handset: Plug one end of the coiled handset cord into the handset and the other end into the handset port on the phone base (usually marked with a handset icon).
- Connect to Network (PoE): Connect one end of the Ethernet cable to the LAN port on the phone (marked with a network icon) and the other end to a PoE-enabled network switch or router. The phone will power on automatically.
- Connect to Network (with Power Adapter - if applicable): If not using PoE, connect the Ethernet cable to the LAN port on the phone and to your network. Then, connect the optional power adapter to the power port on the phone and plug it into a wall outlet.
- Connect PC (Optional): If you wish to connect a computer through the phone, connect an Ethernet cable from your computer to the PC port on the phone.
3.2 Initial Configuration
Upon first power-up, the phone will attempt to connect to your Avaya IP Office or Aura system. This process typically involves obtaining an IP address via DHCP and downloading its configuration. If the phone does not connect automatically, contact your system administrator for network settings and extension details.
4. Operating the Phone
4.1 Basic Call Functions
- Making a Call:
- Lift the handset, press the Speaker button, or press an available line appearance button.
- Dial the number using the keypad.
- Press the Call button (if available) or wait for the call to connect.
- Answering a Call:
- Lift the handset, press the Speaker button, or press the flashing line appearance button.
- Ending a Call:
- Replace the handset, or press the Speaker button (if using speakerphone), or press the Drop button.
4.2 Keypad and Feature Buttons
| Button | Description |
|---|---|
| MESSAGE | Accesses your voicemail messages. |
| OK / Navigation Cluster | Used to navigate menus and confirm selections on the display. |
| PHONE / EXIT | Returns to the main phone screen or exits a menu. |
| MENU | Accesses the phone's main menu for settings and features. |
| CONTACTS | Opens your personal or system contact directory. |
| CALL LOG | Displays a list of recent incoming, outgoing, and missed calls. |
| REDIAL | Dials the last number called. |
| HOLD | Places the active call on hold. |
| CONFERENCE | Initiates a three-way conference call. |
| TRANSFER | Transfers an active call to another extension or external number. |
| DROP | Disconnects the active call. |
| SPEAKER | Toggles the speakerphone on/off. |
| MUTE | Mutes your microphone during a call. |
| VOLUME | Adjusts the handset, speaker, or ringer volume. |
| HEADSET | Activates or deactivates a connected headset. |
5. Maintenance
5.1 Cleaning the Phone
To maintain the appearance and functionality of your Avaya 1608-I IP Phone, follow these cleaning guidelines:
- Always disconnect the phone from its power source (Ethernet cable for PoE, or power adapter) before cleaning.
- Use a soft, lint-free cloth slightly dampened with water or a mild, non-abrasive cleaner.
- Do not spray cleaners directly onto the phone. Apply to the cloth first.
- Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the phone's finish and components.
- Wipe the display screen gently to avoid scratches.
- Ensure all surfaces are dry before reconnecting the phone.
5.2 General Care
- Avoid placing the phone in direct sunlight or near heat sources.
- Do not expose the phone to excessive moisture or liquids.
- Handle the handset and cords carefully to prevent damage.
6. Troubleshooting
This section addresses common issues you might encounter with your Avaya 1608-I IP Phone. For more complex problems, please contact your IT department or Avaya support.
| Problem | Possible Solution |
|---|---|
| Phone does not power on. |
|
| No dial tone. |
|
| Cannot hear caller / Caller cannot hear me. |
|
| Display is blank or frozen. |
|
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 700508260 |
| Product Dimensions (L x W x H) | 9.84 x 7.87 x 2.76 inches (25 x 20 x 7 cm) |
| Item Weight | 1.98 pounds (900 Grams) |
| Color | Black |
| Telephone Type | Corded IP Phone |
| Power Source | Power over Ethernet (PoE) or Corded Electric (optional adapter) |
| Dialer Type | Manual Dialer |
| Answering System Type | Digital (Voicemail access via system) |
| Conference Call Capability | Basic (3-way conference) |
| Multiline Operation | Single-Line Operation (supports multiple line appearances) |
| Display | Monochrome, 4" / 9 cm diagonal |
8. Warranty and Support
For information regarding the warranty of your Avaya 1608-I IP Phone, please refer to the warranty documentation provided at the time of purchase or visit the official Avaya website. Warranty terms and conditions may vary by region and reseller.
For technical support, software updates, or advanced troubleshooting, please contact your authorized Avaya reseller or your organization's IT support department. You can also find resources on the official Avaya support portal.
For general information about Avaya products, visit: www.avaya.com