HARTRON EXAM THEORY PART -16 Voice over internet protocol

Voice over internet protocol

Voice over internet protocol, also called VoIP, IP telephone, Internet telephone, brandband telephone, brand bed phone and voice over brandband is the routing or routing of voice conversion over the Internet or through any other IP based network. Protocols that carry voice signals in an IP network are usually called voice over IP or VoIP. This is more new technology.(HARTRON EXAM)

Telephone system:

A VoIP system allows networked people to use the network for phone calls in place of traditional telephone systems. A company can replace its entire telephone system with a VoIP system or an integrated VoIP. This allows network people to talk to people in other networks with the help of VoIP systems, while using traditional telephone lines to talk to outsiders from the network.(HARTRON EXAM)

Hardware and software

This requires dedicated hardware and software to use the VoIP system. The VoIP system uses a device similar to the hub to manage phone calls made via the network. VoIP software is essential to monitor and maintain the quality and efficiency of voice communication in the network.(HARTRON EXAM)

Wireless Network

Devices such as notebook computers or personal digital assistants (PDAs) can access information without being physically connected to the network using a wireless network. Wireless networks eliminate the need for cables that interconnect devices in traditional networks. The wireless network facilitates mobile devices that remain connected to the network even after moving from one area to another.(HARTRON EXAM)

Radio signal:

Most wireless networks use radio signals to move information between devices from one location to another. These networks typically operate on radio channels between 800 megahertz and 1.9 GHz. In wireless networks, information can be transferred at speeds up to 11 Mpbs.

Radio transceivers:

Radio is used for the exchange of information in a transceiver network. Some wireless devices have transceivers that are connected outside the devices, while other wireless devices have built-in transceivers.(HARTRON EXAM)

Radio technology

There are three different ways of transferring information in a wireless network using radio signals.

GSM:

The most popular transmission technology used on the wireless standard for mobile phones worldwide is the Global System for Mobile Communication or GSM. The system transfers information after transmitting them using a single radio channel from the available channels to transmit data.(HARTRON EXAM)

CDMA:

Code division multiple access is well-known transmission technology. This technology sends information between wireless devices by distributing data to all available channels.

TDMA:

The time division multiple access technology divides a radio channel between multiple devices. Each device can take a turn using the channel. This technology is mostly used by businessmen who offer digital cellular communication.

Wireless technology

Although accessing the network using wireless devices such as notebooks, PDAs, smartphones, etc. depends on the new technology but there are some standards that decide that wireless networks keep functioning properly.

Bluetooth:

Bluetooth is the industrial specification for wireless personal area networks. Bluetooth opens the way for the connection and exchange of information between devices such as phones, laptops, personal computers, printers, digital cameras and video games. It does this through a secure, globally licensed short range radio frequency. Bluetooth is a radio standard and communication protocol Which were initially designed for low power consumption with a short range based on low cost transceiver microchips installed in each device. Bluetooth devices can communicate with each other when in range. These devices use radio communication systems so they do not need to be face to face. Even it can communicate even if it is in different rooms. The transmission received by them will be quite powerful. Can be as far away.(HARTRON EXAM)

Ricochetru

Ricoh Chat is a new network architecture designed for high-speed wireless networks. The Ricochat network is built by placing wireless radio equipment in an area-specific location (such as on the side of the roads in a city). The wireless device then accesses the radio equipment using the recochat model so that it can connect to the network. The Ricoh Chat Network Architecture can transfer information at a speed of 128 Kpbs.(HARTRON EXAM)