Phone to PC
This is a type of communication where an ordinary phone is connected to an internet enabled application or phone, for example Skype or Google Voice.
Session Initiation Protocol (SIP) is a text-based standard put in place by the Internet Engineering Task Force (IETF) and is the primary protocol for Voice over Internet Protocol services. SIP is similar to a MGCP in that it's a signaling protocol that can create, maintain and terminate sessions in IP-based networks. These sessions include multimedia conferencing and two-way phone calls. SIP protocol can run on User Datagram Protocol (UDP), Stream Control Transmission Protocol (SCTP) and Transmission Control Protocol (TCP) because it was created to function independently from the underlying Transport Layer as an Application Layer.
VoipCall.net
VoIPCall is an Iternet Telephony Service Provider offering business class termination and origination services worldwide.VoIPCall also offers Resellers a Hosted SIP Server platform allowing entrepeneurs the opportunity to become an ITSP without the hasse
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