The 4 layers are as follows.
Ip phone is part of which tcp/ip layer. TCPIP is normally considered to be a 4 layer system. The position of Internet layer is between Network Access Layer and Transport layer. Internet Layer is the second layer of the four-layer TCPIP model.
The TCPIP protocol supports two types of port- TCP Port and UDP Port. IP addresses are implemented at the networking layer which is the IP layer. TCPIP is composed of two layers IP and TCP.
IP - is responsible for moving packet of data from node to node. TCP is for connection orientated applications. OSI layers 1 2 are combined into one Network Access Layer in TCPIP however TCPIP does not take responsibility for sequencing and acknowledgement functions leaving these to the underlying transport layer.
It combines the functionalities of the session layer the presentation layer and the application layer of the OSI model. This is the top layer of TCPIP protocol suite. The four-layer of the TCPIP model includes.
OSI refers to Open Systems Interconnection whereas TCPIP refers to Transmission Control Protocol. Application layer is used exchange messages. It is the second layer of the TCPIP model and this layer is parallel to the Network Layer of the OSI Model in terms of the structure.
It facilitates the user to. IP forwards each packet based on a four byte destination address or the IP number. TCPIP is a functional model designed to solve specific communication problems and which is based on specific standard protocols.