How to input SIP setting on IP 8821

[SanW]

Unable to find the interface to enter the SIP information on IP8821.  Do I need any software to do it? Can anyone advise the procedure? 

[Leo Laohoo]

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@SanW wrote:

Unable to find the interface to enter the SIP information on IP8821.

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Flip the phone and look at the Product ID (PID) or the SKU.  Does the model number have the letters 3PCC or MPP?  

If not, then the phone has Enterprise image and this means the phone can work with Cisco call manager. 

[SanW]

No 3PCC or MPP, but can't find the interface for the Cisco call manager?  

[Leo Laohoo]

The firmware of the phone can be converted from Enterprise to 3PCC/MPP for a fee:  Cisco Cloud Upgrader

Cisco IP Phone 8800 Series Multiplatform Phones User Guide

[Leo Laohoo]

What a second ... WTF am I talking about?  
8821 is a wireless handset.  There is no 3PCC/MPP firmware available for this model. 

Please provide relevant business case if this phone is going to be used with CUCM or not.