Sigma Voice empowers organizations to effortlessly communicate with their contacts fast with advanced calling and texting solutions. Sigma Voice is available across Canada and the USA. Sigma Voice offers 2 phone-based messaging products. + Automated Calling Call every one of your contacts with a pre-recorded message fast. + Mass Texting Type up a text message and send it to all your contacts fast. 1,000+ businesses & non-profits of all sizes trust Sigma Voice + Schools & Universities + Places Of Worship + Insurance Companies + Medical Offices + Unions & Associations + Home Services + Retail Stores + Senior Living Request a free trial by visiting our website.