Some firms are attaching documents to text messages--perhaps a floor plan for evacuation or a list of emergency procedures for employees to follow. Others are asking recipients to respond to alerts, pressing 1 if theyre ok, for instance, or to join a conference call after reading the message. Wireless home security systems can send alerts to cellphones, read more warning of intruders. Callback software can be programmed to automatically dial a phone in set time increments.
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