Cisco IP Phone: Finding the MAC Address, aka. Host Name

The media access control (MAC) address is the only unique identifier we have for Cisco IP phones on campus. By referencing the MAC address, we can remotely provision and service that specific phone. You may be asked by our staff to identify this information in order to help. (Thanks!)

Cisco 8841 5-Line Color Screen Phone

In the menu

You can find the Host Name in the menu of the Cisco 8841 display phone

1. Press the [GEAR ICON] hard button to the left of your number pad
2. Select Phone Information on the menu using the circle (or press the number key displayed on the menu item)
3. Reference the third value called Host Name which starts with "SEP"

You can access this even while being on a phone call.

On the back of the phone

To locate the MAC address on your Cisco IP phone, look at the back of the phone at the sticker on the bottom right.  It is a string of 12 alpha-numeric values.

Cisco 3905 Single Line Phone

In the menu

The Cisco 3905 has a small LCD 2 line screen. You use the buttons just below the screen to navigate through the menu items.

1. Press the [GEAR ICON] hard button
2. Press the [DOWN ARROW] until you see Phone Information
3. Press the [SQUARE] to select
4. Press the [DOWN ARROW] until you see the MAC Address scrolling across the screen
5. Press the [BACK ARROW] until you get back to the idle screen

On the back of the phone

To locate the MAC address on your Cisco IP phone, look at the back of the phone at the silver sticker on the button of the unit.  It is a string of 12 alpha-numeric values.

Cisco 7925G Wi-Fi Phone

In the menu

1. Power on and unlock the phone (if applicable)
2. Press the [DOWN ARROW] to access the Settings
3. Press the [DOWN ARROW] until the Model information option is selected
4. Press the [SELECT] button (round button between the four arrows)
5. The MAC Address is the second item list on the screen
6. Press the [BACK] button to return to the Settings menu
7. Press the [EXIT] button to return to the idle screen

On the back of the phone

The MAC address is printed on a sticker in the battery compartment.  

1. Power down the phone by pressing and holding the power button (when unlocked)
2. Turn over the phone and refer to the back of the phone
3. Slide the slide at the top of the battery compartment to the left while at the some time pulling against the pull tabs on each side of the compartment door
4. Observe the orientation of the battery so you can replace it more easily
5. At the top of the battery by the Cisco logo you can pull out the battery
6. The MAC Address is the third bar code on the sticker
7. Replace the battery 
8. Replace the battery compartment door
9. Power up the phone by pressing and holding the power button