Overview This tutorial will teach you about extension mobility on your Cisco IP 8800 desk phone. Cisco Extension Mobility (EM) allows you to temporarily configure a Cisco Unified IP Phone as your own. To Log In Press th…
Extension Mobility
Last updated: April 2026
Reading time: ~2 min
Audience: Boxis customers and administrators.
What you'll accomplish
- Complete the configuration or task described in this guide for your Boxis service.
Prerequisites
- Access to the interface, device, or server described below.
- Information or credentials you received from Boxis (contract, welcome e-mail, or client area).
Note Boxis: Offers and screens may differ slightly depending on your product. When in doubt, open a support ticket with your service reference.
Overview
This tutorial will teach you about extension mobility on your Cisco IP 8800 desk phone. Cisco Extension Mobility (EM) allows you to temporarily configure a Cisco Unified IP Phone as your own.
To Log In
- Press the Application Button (which is marked by a gear icon)
- Select EM Service (the name can vary).
- Enter your user ID, which may be your Network user ID, and your PIN (which is typically provided by your system administrator).
- If prompted, select a device profile.
After you sign in to EM, the phone adopts your user profile, including your phone lines, features, established services and web-based settings. Your system administrator sets up Extension Mobility for you.
If you share a desk, always remember to log out at the end of the workday. This ensures a successful login for the next person using the phone.
Enter your user ID, which may be your Network user ID, and PIN.
To Log Out
- Press the Application Button (which is marked by a gear icon)
- Select EM Service (remember, the name can vary).
- When prompted, press the Yes softkey.
Select EM Service (remember, the name can vary).
Change your EM PIN
Note that you can also use the Log Out screen to change your EM PIN.
- Select Set PIN
- Enter your Current PIN then your new PIN
- Confirm your new PIN then press change
Note that you can also use the Log Out screen to change your EM PIN.
Expected result
- The product behaves as described in each step (connectivity, message, or UI state).
If something goes wrong
- Repeat the step and check for typos (hostnames, passwords, ports).
- Note the exact error message or screenshot.
- Open a ticket in the Boxis client area with the service name, time of the test, and any trace (e.g. traceroute) if it is a network issue.
See also
- Other articles in the same category in the Boxis knowledge base.
/knowledgebase/— main knowledge base index.