A person can send a text message from a computer to a cell phone by using one of the available online messengers that support SMS messaging, such as the ones provided by Yahoo! and America Online. It is also possible to text from a computer by using online text services.
Online messengers often allow users the option to send text messages from computers much in the same fashion that regular instant messages are sent. To send text messages, users must choose the option to send the messages via SMS, and then enter the phone numbers of the desired recipients. When responses are sent, the return messages are also delivered via the instant messengers. Free account membership is often a requirement in order to use online messengers to send text messages from computers.
In addition, there are online tools available, such as OnlineTextMessage.com, designed with the specific purpose of sending text messages to cell phones from computers. Membership registration and downloading software is usually not necessary with this method of texting; however, receiving responses to sent texts may not be an option when this method is used. Text messaging from a computer may not be an option in some countries or with certain carriers.