It 321 Network Technology and Service Integration Essay Example

It 321 Network Technology and Service Integration Essay Example It 321 Network Technology and Service Integration Essay It 321 Network Technology and Service Integration Essay IT 321 Network Technology and Service IntegrationIT 321 Network Technology and Service Integration Assignment 1-4 Review Questions Ch. 9 in Intro to Telecommunications 1. 2. Define the following terms: a. CPS-Central Processing System- the â€Å"brains† of the switch. The main functions of the CPS are global call processing, network control, signaling control, maintenance, and administration. It is responsible for system, recovery, software upgrades, storage of global routing information, and distribution of information to all subsystems. b. NCP- Network Control Processor- the mini brains of the switch. It is connected to the CPS and the line and trunk modules. It receives questions from the line and trunk units regarding call routing, feature requests, and so forth. c. ICS- Interface Controller- Interface between the NCP and the line modules. The IC sits between the switching fabric and the line or trunk modules and is used to connect the two. It can be considered the highway that is used to pass messages between the different modules cause it talks to the NCP. d. Trunk Module- The portion of the switch where the trunk circuits terminate. The y terminates trunks into the switch. Trunks arrive from other switches, and terminate at the trunk module. e. Line Module- The portion of the switch where the individual POTS lines terminates. The line module is the module that interfaces with the subscriber’s line. 3. Explain the difference between a tandem switch and a class 5 switch. f. The tandem switches main purpose is to switch trunks, routing them between class 5 switches. Many class 5 switches now have tandem switch capabilities blurring the line between class 4 and 5 switches. 4. Explain the difference between a tandem switch and a long distance switch. g. .. 5. Explain the difference between a long distance switch and an international switch. h. .. 6. Explain how a class 5 switch routes a call traveling between two lines that are served from the same switch. i. .. 7. Explain how a call is routed between an end-office switch and the local tandem switch. j. .. 8. 9. 10. Why do business customers purchase private branch exchanges? k. The private branch exchanges is like the class 5 switch but it resides at the customer’s premises. It routes incoming and outgoing calls, provides features on the line, and keeps call records on each individual line. It reduces the number of lines needed between the business and the telephone company. 11. 12. 13. 14. Define each part of the following number as defined by the North American numbering plan: 818-555-9877. l. 818 is a three-digit area code-Numbering Area Plan (NPA) m. 555 is a three-digit number exchange (NXX) n. 9877 is a four-digit subscriber code (XXXX) 15. 16. 17. 18. 19. 20. Define the following terms: o. usy hour- the number of calls a switch can hold is the busy hour call attempts. This type of blockage happens when the switch’s processing power or CPU is too small to handle the call volumes. p. average hold time- the average time a subscriber remains on the telephone. 21. Name five features offered by the class 5 switch. q. three-way calling r. speed calling s. call waiting t. call forwarding u. voicemail 22. List three of the CLASS features offered by the class 5 switch. v. Automatic recall (redial) w. calling number identification (caller ID) x. distinctive ringing