Doctor using mobile phone and text messaging in the office.
Businessman relaxing in office, using smartphone to send message
Young woman reading a message or using the phone in the city
Older woman types message, chatting using smartphone
Woman use of mobile phone for sending message at outdoor
Woman use of mobile phone for text message in city
Woman use of mobile phone to send message in city
Person using smartphone with touch screen for text messages
Casual Businesswoman holding and using smartphone for sms messages,
A traveler with backpack using cellphone for voice message at subway.
Happy blogger reading messages of fans using smartphone
Happy young woman using smartphone for checking messages
Travelers at train station using cellphone for voice message.
African american girl using smartphone application for messaging
Casual Businessman holding and using smartphone for sms messages,
Male entrepreneur using smartphone on break to text messages
Person using smartphone with touch screen for text messages
Casual Businesswoman holding and using smartphone for sms messages,
Multitasking process of professional experts using smartphones for messaging
Happy blogger reading messages of fans using smartphone
Thoughtful man messaging using mobile phone on street
Casual Businessman holding and using smartphone for sms messages,
Male runner using phone for messaging during break
Happy blogger reading messages of fans using smartphone
Young woman using phone for voice message in city
Woman typing a text message using smart phone
African american woman using smartphone to text messages
Casual Businesswoman holding and using smartphone for sms messages
Girl messaging with friend using smartphone resting on couch
Asian woman use smartphone for texting, reading, messaging .
