I want you to get the most out of your iPhone 4S battery life! In what zip code are you experiencing the signal problems? Have you noticed this happening indoors, outdoors or both? Do you have any other applications running on your device while at work, for i.e. bluetooth, WiFi, music/video applications? Here are some battery saving tips for your device: http://vz.to/16JnADD. Let me know so I can further assist. Thanks!
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