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Cisco Unified IP Phone 6901 and 6911 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)
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Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Determining the MAC Address for a Cisco Unified IP Phone
phones can register. If Cisco Unified IP phones to be connected to Cisco Unified CM are brand new,
out-of-the-box, the SCCP phone firmware preloaded at the factory must be upgraded to the
recommended SIP version before your SIP phones can complete registration.
For information about how to convert an in-use phone from one protocol to the other, see the Cisco
Unified Communications Manager Administration Guide, Cisco Unified IP Phone Configuration,
section Migration Existing Phone Configuration to a Different Phone.

Deploying a Phone in an SCCP and SIP Environment

To deploy Cisco Unified IP Phones in an environment that includes SCCP and SIP and in which the
Cisco Unified Communications Manager Auto-Registration parameter is SCCP, perform these general
steps:
Procedure
Step 1 Set the Cisco Unified Communications Manager auto_registration_protocol parameter to SCCP.
From Cisco Unified Communications Manager Administration, choose System > Enterprise
Parameters.
Step 2 Install the phones.
Step 3 Change the Auto Registration Protocol enterprise parameter to SIP.
Step 4 Auto-register the SIP phones.
Determining the MAC Address for a Cisco Unified IP Phone
Several procedures described in this manual require you to determine the MAC address of a
Cisco Unified IP Phone. You can determine a phone’s MAC address in these ways:
Look at the MAC label on the back of the phone.
Display the web page for the phone and click the Device Information hyperlink.
For information about accessing the web page, see the “Accessing the Web Page for a Phone”
section on page 6-2.