Free In-Network Calling

Free In-Network Calling

Calls within the operator’s network are absolutely free of charge.

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Detailed description of SIP protocol

Detailed description of SIP protocolSIP protocol was made within IETF (Internet Engineering Task Force) – organization occupied with establishing Internet standards and general standards concerning TCP/IP protocols.

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United States SoTel Systems LLC

SoTel Systems, LLC is to be the industry leader at providing profitable, customer service-focused and agile business communications solutions through a dedicated and empowered workforce. the premier wholesale supplier for business communications products

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