Man using cell phone outdoors

Man using cell phone, smiling

Man text messaging with cell phone

Young woman wearing traditional Chinese clothing, holding parasol and using cell phone

Businessman using cell phone, smiling

Man text messaging with cell phone

Man text messaging with cell phone

Businessman holding up cell phone, smiling

Man using cell phone and digital tablet outdoors

Businessman using cell phone, colleague working in background, portrait

Businessman showing cell phone to female colleague, both smiling at each other

Businessman using cell phone, portrait

Businessman lying on grass, holding cell phone, eyes closed, smiling

Businessman using cell phone

Businessman using cell phone

Businessman lying on grass, holding cell phone

Young woman holding cell phone, smiling, portrait

Businessman standing barefoot on beach, holding cell phone

Businessman talking on cell phone and smiling outdoors

Mid-adult businessman talking on cell phone, smiling

Businessman looking at cell phone

Businessman talking on cell phone

Businessman talking on cell phone

Mature businessman using cell phone

A businessman looking up as he is holding a briefcase

A businessman holding a briefcase, a newspaper, a tablet, and a file folder while talking on his cell phone

People with computer and cell phone

A cartoon drawing of a businessman sitting at a work desk looking stressed and surrounded by active cell phone, computers, intercoms and memos

Close-up of a businessman talking on a mobile phone

A business man juggling cell phones

A woman using a cell phone

Business woman smiling and mobile phone in hand, Illustration

Businessman holding a cordless phone

Group of businessmen

A group of young people holding cell phones and personal digital assitants

Closeup of blonde woman on mobile phone

Businessman on a cell phone

Business building blocks

Businessman holding up cell phone, smiling