Part B: VoIP Computer-to-Computer
Voice over Internet Protocol (VoIP) is the process of taking analog signals, such as a human voice, and transmitting them over the Internet as digital data. Computer-to-computer VoIP is usually thought of as the simplest way to use VoIP, as it simply requires a computer with basic peripherals, an internet connection and can easily be used with popular software such as Skype.
What devices are involved from transferring Alice’s voice to the sound that Bob receives?
Alice and Bob will both require a computer (or laptop) device in order to transfer sound. Alice will require a microphone to be able to speak into and Bob will require speakers in order to hear the sound, which could be just a headset or speakers. …show more content…
Firstly though, the analog data will go through the PCM (Pulse Code Manipulation) process, where the analog data is quantized into binary encoding using samples from analog signals. The digital packets containing the binary encoding will then pass through the network from node to node along a path. At each node, the packet will be briefly stored and then forwarded on to the next node until it arrives at the receiver’s destination. The data is sent over the telephone line digitally. The data will contain instructions on reconstructing the digital data back into analog signal, where Bob will be able to hear the analog human voice audio.
VoIP utilizes full duplex data transmission, where both people using VoIP can send and receive simultaneously, as the medium is both carrying and sending signals at the same time, allowing two-way communication between the sender and receiver.
VoIP will contain a IP header that carries both of the sending and receiving IP addresses (for both Bob and Alice). In addition, the UDP header will also carry the sending and receiving port numbers for the call. There will also be a RTP header, which will carry packetized audio over a IP
Voice over Internet Protocol (VoIP) is the process of taking analog signals, such as a human voice, and transmitting them over the Internet as digital data. Computer-to-computer VoIP is usually thought of as the simplest way to use VoIP, as it simply requires a computer with basic peripherals, an internet connection and can easily be used with popular software such as Skype.
What devices are involved from transferring Alice’s voice to the sound that Bob receives?
Alice and Bob will both require a computer (or laptop) device in order to transfer sound. Alice will require a microphone to be able to speak into and Bob will require speakers in order to hear the sound, which could be just a headset or speakers. …show more content…
Firstly though, the analog data will go through the PCM (Pulse Code Manipulation) process, where the analog data is quantized into binary encoding using samples from analog signals. The digital packets containing the binary encoding will then pass through the network from node to node along a path. At each node, the packet will be briefly stored and then forwarded on to the next node until it arrives at the receiver’s destination. The data is sent over the telephone line digitally. The data will contain instructions on reconstructing the digital data back into analog signal, where Bob will be able to hear the analog human voice audio.
VoIP utilizes full duplex data transmission, where both people using VoIP can send and receive simultaneously, as the medium is both carrying and sending signals at the same time, allowing two-way communication between the sender and receiver.
VoIP will contain a IP header that carries both of the sending and receiving IP addresses (for both Bob and Alice). In addition, the UDP header will also carry the sending and receiving port numbers for the call. There will also be a RTP header, which will carry packetized audio over a IP