SIP Trunking
This is a Voice over Internet Protocol (VoIP) and streaming media service based on the Session Initiation Protocol (SIP) by which Internet telephony service providers (ITSPs) deliver telephone services and unified communications to customers equipped with SIP-based private branch exchange (IP-PBX) and Unified Communications facilities
The external call transfer – is the call transfer to a telephone line other than the company’s telephone line. The internal call transfer – the transfer of an incoming call to another addressee registered on the same telephone line.
Core Communications, Inc.
CoreTel promises to leverage its interconnection knowledge and expertise to provide a reliable wholesale VoIP network which will allow our customers to develop and manage a wider choice of dynamic phone services for the consumer.
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