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The distinction between the KTSs and PBXs became more blurred as technology brought more intelligence to the KTS
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∙ 13y ago
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Do PBXs have a uniform call distribution system?
It is a standard feature of many PBXs
What were PBXs used for?
PBXs were economical for some very small businesses in need of features that most key systems did not provide, such as restriction and least cost routing
What do you use trunks for in a telephone network?
To connect telephone company central offices (COs), To provide a path between switches, To connect PBXs
What are private branch exchanges used for?
Private branch exchanges (PBXs) are used for internal and external voice traffic
What kind of trunk connects two PBXs over distance?
PBX systems uses PSTN lines to connect another PBX system over a long distance.
Difference between an analog pbx and digital pbx?
Analog PBX is telephone system that is capable of handling calls and phone logs. Digital PBX is a system bundle with phone capabilities, fax, and other internet features. Digital PBXs are usually interfaced with computers and are internet-based.
Why do business customers purchase private branch exchanges?
Private branch exchanges (PBXs) are used for internal and external voice traffic. Business customers purchase PBXs because it provides features on the line, and keeps call records on each individual line. It connects to the local telephone end office switch through shared trunks, thus reducing the number of telephone lines needed to supply dial tone to all of the employees in the company.
What Used cycle as an explosive ingredient in nuclear weapons?
You question is far from clear, but nuclear weapons use a high explosive "trigger". The chemical explosives serve to crush nuclear materials into a very dense form, starting a nuclear chain reaction. There have been many different explosives used for that purpose- explosives used in modern day weapons is rather classified, and we don't discuss classified materials here.The chemical explosives used in most nuclear weapons since the 1960s have been PBXs (Plastic Bonded Explosives). However there are literally many dozens of different PBXs, each having different properties. PBXs were selected for safety: they are insensitive to shock or fire.I am not sure what you mean by "cycle". The only thing I know of with a name like that was cyclonite, an explosive used in some nuclear weapons in the 1950s, but it is very shock sensitive and thus unsafe.Some unclassified information on nuclear weapon explosives is available in Chuck Hansen's work Swords of Armageddon.
What is Voice over Internet Protocol hosted PBX?
"A hosted PBX system delivers PBX functionality as a service, available over the Public Switched Telephone Network (PSTN) and/or the internet. Hosted PBXs are typically provided by the telephone company, using equipment located in the premises of the telephone company's exchange. This means the customer organization doesn't need to buy or install PBX equipment (generally the service is provided by a lease agreement) and the telephone company can (in some configurations) use the same switching equipment to service multiple PBX hosting accounts..." - Wikipedia.org
What is the role of computer?
Information Technology is a 'classification' term that defines all components of the systems that gather, share and store information. A computer is a component of the 'IT' division. Other components are the Network devices (routers, switches, hubs, etc.), communication devices (Modems, PBXs, etc.), storage devices (optical drives, mass storage drives, back up units, etc.), etc.
Does ISDN need PBX?
I'm uncertain as to whether you're asking because you simply don't know or if you're trying to open a 'what might have been' debate. ISDN could integrate voice and data but the principal functionality was circuit-switched technology and so would require the use of layer 2 switching to disseminate call requests around a network; PBXs certainly provided layer 2 switching. There is a data capability but this really is a small-scale enterprise, it is used chiefly for signalling and low-rate user data eg keystrokes or things like (I'm guessing) chat windows. Data was inherent in the BRI and was only switched out of the same channel at the PBX where voice, data and signalling were separated but the point is that the data needed the PBX in order to implement that separation. ISDN was not well-equipped for large file transfers so it is unrealistic to consider its data capability as a peer of its telephony capability. Computer communications (it has to be stipulated, some years ago now) utilised the higher-rate B-channel and Frame Relay was a purpose-built protocol designed for B-channel computer communications but the ISDN solution never emerged as a dominant market player, I recall some mystifyingly high equipment and line pricing strategies had alot to do with it.
What is a dedicated-circuit switched network?
A distinct physical circuit dedicated to directly connecting devices, such as multiplexers, PBXs, and host computers. A dedicated circuit, also known as a leased line, can be provisioned over a private network comprising facilities owned by the end user organization, although it more typically is in the form of a leased line provisioned over a public network. In the latter case, the circuit includes an access circuit, or local loop, that connects the originating device at the customer premises to the service provider's point of presence (POP) at the edge of the carrier network. In the case of an incumbent local exchange carrier (ILEC), the POP typically is housed in a central office (CO). At the POP, the access circuit terminates in a wire center, where it is cross-connected directly to a long-haul transport circuit, bypassing any switching devices. The long haul portion of the dedicated circuit typically comprises multiple interconnected links and terminates in a POP at the egress edge of the network, where it is crossconnected to another access circuit that connects to the premises housing the destination device. A dedicated circuit offers the advantages of dedicated availability, dedicated bandwidth, and excellent performance overall. Because a dedicated circuit is not in shared public use but is dedicated to the requirements of a specific customer, it tends to be expensive, with the cost sensitive to bandwidth and distance. The cost, however, is typically a flat rate, with no usage-sensitive component; therefore, the end user organization can use the circuit constantly to maximum capacity at the same cost as if it were to not use the circuit at all. The nature of the traffic over a dedicated circuit generally is not restricted, and can include voice, computer data, facsimile, image, video, and multimedia traffic. The ability to integrate such a wide variety of traffic over a single facility offers considerable efficiencies. A multi-site user organization might consider a private, leased line network to interconnect the sites. However, the process of designing such a network can be difficult, as it is necessary to determine the points of termination in the optimal topology, the correct number of circuits, and the bandwidth requirements of each.When the design is established, the provisioning time required by the carrier can be quite lengthy. As a dedicated circuit involves a specific set of network elements, the circuit is susceptible to disruption. Therefore, backup circuits or services are required to ensure connectivity in the event of either a catastrophic failure or serious performance degradation. Organizations with intense communications requirements commonly consider dedicated circuits to be viable alternatives to switched circuits. Large data centers that communicate intensively in support of applications such as data backup traditionally have opted for dedicated circuits. Large multi-site end user organizations often use dedicated circuits known as tie trunks to tie together multiple PBXs. In such applications, the advantages of assured availability, capacity, and performance in support of mission-critical, time-sensitive applications, particularly when coupled with low comparative cost, can outweigh considerations of configuration difficulty and risk of circuit failure. Dedicated circuits sometimes are referred to as nailed-up circuits because, in bygone days, the twisted-pair copper physical circuits were hung from nails driven in the walls of the carrier's wire centers.
