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What are the different networking topologies?
what are the different networking topologies?
What is the difference in the working of MSC and PSTN?
I think PSTN mainly serves to wired land-line(telephone) and MSC serves to cellular(mobile) network.
Which network topology uses a backbone?
Even the smallest LAN technically has a backbone, which could be any of the 4 basic topology types. Any time you need to connect various routers, switches, etc., together you connect them via a backbone cable. A backbone may have its own topology as well,such as a serial bus, parallel, distributed, or collapsed backbone. These topologies do not exactly mirror topologies for a LAN or a WAN.
Which PSTN connections use dual tone multi frequency technology to transfer information?
local exchange to subscriber connections that use the calling line ID presentation service exchange to PBX connections
What is a difference between pstn and isdn?
PSTN is Public-Switched Telephone Network ISDN is Integrated Services Digital Network. PSTN is followed by ISDN, chronologically. <p><p> The difference between PSTN (Public-Switched Telephone Network) and ISDN (Integrated Services Digital Network: First, they must be explained, and in chronological dating, these technologies can be understood: *Some PSTN History: The PSTN was the earliest example of traffic engineering to deliver Quality of Service (QoS) guarantees. A.K. Erlang (1878-1929) is credited with establishing the mathematical foundations of methods required to determine the amount and configuration of equipment and the number of personnel required to deliver a specific level of service. PSTN: In the 1970s the telecommunications industry conceived that digital services would follow much the same pattern as voice services, and conceived a vision of end-to-end circuit switched services, known as the Broadband Integrated Services Digital Network (B-ISDN). The B-ISDN vision has been overtaken by the disruptive technology of the Internet. Only the oldest parts of the telephone network still use analog technology for anything other than the last mile loop to the end user, and in recent years digital services have been increasingly rolled out to end users using services such as DSL, ISDN, FTTP and cable modem systems. Many observers believe that the long term future of the PSTN is to be just one application of the Internet - however, the Internet has some way to go before this transition can be made. The QoS guarantee is one aspect that needs to be improved in the Voice over Internet Protocol (VoIP) technology. There are a number of large private telephone networks which are not linked to the PSTN, usually for military purposes. There are also private networks run by large companies which are linked to the PSTN only through limited gateways, like a large private branch exchange (PBX). ISDN Integrated Services Digital Network (, originally "Integriertes Sprach- und Datennetz" (German for "Integrated Speech and Data Net"), is a circuit-switched telephone network system, designed to allow digital transmission of voice and data over ordinary telephone copper wires, resulting in better voice quality than an analog phone. It offers circuit-switched connections (for either voice or data) in increments of 64 kbit/s. One of the major use cases is Internet access, where ISDN typically provides a maximum of 128 kbit/s. More broadly, ISDN is a set of protocols for establishing and breaking circuit switched connections, and for advanced call features for the user. It was introduced in the late 1980's.[1] In a videoconference, ISDN provides simultaneous voice, video, and text transmission between individual desktop videoconferencing systems and group (room) videoconferencing systems. [edit] ISDN elements * Integrated Services refers to ISDN's ability to deliver at minimum two simultaneous connections, in any combination of data, voice, video, and fax, over a single line. Multiple devices can be attached to the line, and used as needed. That means an ISDN line can take care of most people's complete communications needs at a much higher transmission rate, without forcing the purchase of multiple analog phone lines. * Digital refers to its purely digital transmission, as opposed to the analog transmission of plain old telephone service (POTS). Use of an analog telephone modem for Internet access requires that the Internet service provider's (ISP) modem converts the digital content to analog signals before sending it and the user's modem then converts those signals back to digital when receiving. When connecting with ISDN there is no analog conversion. * Network refers to the fact that ISDN is not simply a point-to-point solution like a leased line. ISDN networks extend from the local telephone exchange to the remote user and includes all of the telecommunications and switching equipment in between. The purpose of the ISDN is to provide fully integrated digital services to the users. These services fall under three categories: bearer services, supplementary services and tele-services.
Describe how a network based VoIP provider interacts with the PSTN?
PSTN will convert the digital signal from VoIP into voice signal. Their networks interacts using satellite frequency.
What are the different networking topologies?
what are the different networking topologies?
Four types of network topologies used in wire based networks?
Ring, Star, Bus, Mesh.
What is a pstn gateway?
PSTN stands for a public switched telephone network. A PSTN gateway is hardware components that third parties use to translate signaling.
How can you get a pstn modem to answer calls from a voip system?
By the way, call from VOIP can be received by pstn modem. But pstn cannot make a call to VoIP number.
list four types of network topologies used in wire based networks?
Ring, Star, Bus, Mesh.
What is the difference between PSTN and PLMN?
pstn is for wired network plmn is for mobile network
What is the difference between the facilities offered on a PSTN and the ISDN?
ISDN is dial up lines and PSTN is a broadband line.
What is true concerning physical and logical topologies?
Logical topologies consist of virtual connections between nodes.
What kind of network do schools use?
Star topologies. Sometimes combined topologies are used of which i have no idea!! :P
What kind of topologies are good choices for highly available enterprise networks?
Mesh topologies and SONET rings.
Among topologies which is the best one?
The best topology, whether it is a LAN based or a WAN based topology, is the one best suited for your environment. There is no one best topology for all situations.
