Popfax.com is a global provider of Internet fax service. It allows customers to send and receive faxes by any email client or web interface.
The service has been commercialized, based on a "software as a service" business model, since 2006. It is both a solution for individual professionals (SMEs and SoHos) and for corporate customers who use this outsourced solution to meet their faxing needs. It can either replace fax server equipment, be used as a mobile fax fleet, or fit into a transactional application.
The Callcentric service provides consumers and businesses around the world with the benefits of cost savings and high quality phone calls using Session Initiation Protocol (SIP) which is a type of Voice over Internet Protocol (VoIP). Using software on you
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