The Tellumat Sigma offers a total SOHO voice and Internet access solution in a single platform. For customers running a business from home, the Sigma is the ideal system that satisfies both the household and office needs. The Sigma allows you to add two VOIP SIP Trunks over your broadband connection, providing reduced telephony costs. The Sigma is the premier product for one or two line businesses that require broadband communications as well as feature rich voice services and data networking. The Sigma is a unique product as it offers a total SOHO office solution in a single platform.