Utstar pn820 User Guide

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Your phone has a unique identification number known as the Electronic 
Serial Number, or ESN. To see the ESN follow these instructions.

 From the Home screen, press the left soft key < 

[Start].

 Select Settings and press O [OK].

 Scroll to Phone Information and press O [OK]. 

Each phone has a software version number. Check the software 
version of your phone to make sure it matches the documentation 
accompanying it.

 From the Home screen, press the left soft key < 

[Start].

 Select Settings and press O [OK].

 Scroll to Phone Information and press O [OK].