IETF
allow Ip out for all protcols block Ip in for all protcols block ICMP in/out allow HTTP However trojans can find another ways to enter the system, so you must use a good internet security product with firewall.
Supervisors, and Employees
The most common Network routing protcols used for interior routing is OSPF and RIP. RIP is still common because of its compability whit older hardware and software.
Go to this link. It discusses VoIP which is a type of telephone which doesnt charge as it uses the protcols from the internet.http://en.wikipedia.org/wiki/VoIPAnswerThere are analog and digital telephones (IP phones) used in the communication industry. To make analog phone compatible to IP service an Analog adapter in needed in order for the voice signal to run over the internet connection.
A communication protocol is important because it defines a set of rules for how data is transmitted between devices, ensuring compatibility and consistency in data exchange. It helps devices understand each other and establish communication effectively, leading to efficient and error-free data transfer. Overall, communication protocols enable seamless interaction between diverse systems and facilitate smooth communication across networks.