What are some alternatives?
Salesmsg - Salesmsg is a simple tool that gives businesses an easy way to text their contacts online from local phone numbers.
SimpleTexting - SimpleTexting offers SMS and text marketing services for companies of all sizes.
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
Texting Base - Texting Base is a personalized group text messaging platform.
Call Loop - Automated Calling & SMS Texting Made Easy
MessageMedia - MessageMedia offers SMS software and solutions for businesses.