AT&T is a US-based telecoms company, and the second largest provider of mobile services and the largest provider of fixed telephone services in the US.
Verizon VoIP (Voice over Internet Protocol) helps small, medium and large businesses route and manage calls. It includes features like call forwarding, voice mail, monitoring, productivity add-ons, on-hold music and mobile capabilities.
PayPal is a global eCommerce platform for buyers & sellers. PayPal allows payments & money transfers to be made securely via email, phone, text message or Skype.
Sugar Sell (formerly SugarCRM) is a Social CRM tool that includes full sales, marketing and support automation, email integration, reporting, team selling, advanced security and workflow automation.