Determine the Extent of the Problem

Common Symptoms: Cannot make calls, phones do not dial out, offline or exclamation mark icon on the phone screen

Question: Are you experiencing issues with a single phone or all phones?

For a Single Phone Issue:

1. Network Cable Connection:

• Ensure the Ethernet (network) cable is securely connected to the phone's LAN/Internet port.

2. Power Check:

• Confirm the phone is powered on. The display screen should show activity.
• If the phone is off, ensure:
• The power supply is plugged into the power outlet, or
• If using Power over Ethernet (PoE), trace the cable and verify its connection.

3. Location Swap:

• Temporarily move the phone to a different location and swap its cables with a functioning phone to rule out location-based issues.

If All Phones Are Offline:

1. Internet Connectivity:

• Confirm that other devices on your network are connected to the internet.
• If not, restart your modem/router by unplugging for 30 seconds and then re-plugging.
• If the outage persists, contact your Internet Service Provider (ISP) for further assistance.

2. Phone Display Check:

• Observe the phone screens and button lights for any signs of activity.
• If the phones appear inactive:
• Reboot by unplugging their power source, waiting for 30 seconds, then re-plugging.
• If using a PoE switch, reboot it and look for flashing activity/link LEDs.

3. Network Changes:

• Have there been recent alterations to your networking setup (e.g., new routers, switches)?
• If yes, temporarily revert to the previous setup. If phones become operational, the recent changes are likely the culprit. Consider rebooting phones or further assessing new device configurations.