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q explain the architecture of ss7 and compare with seven-layer osi architectureansa block schematic diagram of ccitt no 7 signalling system is
q what is centralized spcin centralized control all control equipment is replaced by a single processor which should be quite powerful it should be
q compare electromechanical switching system with electronic switching systemsr noelectromechanical switching systemelectronic switching
q what do you mean by conditional selectionconditional selection when a marker is instructed to create a connection from a given incoming trunk to a
q explain about register markerregister marker stronger selectors perform searching and counting though the crossbar switch has no lsquointelligence
The wet weight of a sample is missing in a Proctor test. The oven-dry weight of this sample is 189 N. The volume of the mould used is 1000 cm3.
q what are the supplementary servicesnew services are called supplementary services and some of the prominent ones are as belowcategory 1
q show the dialling circuitdialling circuit enables subscriber to output signals representing digits and this enables caller to enter destination
q need of microphone in telephone hand setmicrophone for all practical purposes microphone is transmitter for telephone the microphone converts
q use of speakerspeakerbasically speaker is the receiver for telephone speaker converts electrical signals received from local loop to acoustical
q working of equalizer circuitequalizer circuit equalizers are combination of passive components capacitors resistors and so on that are used to
q working of on - off hook circuit in telephone hand setonoff hook circuit sometimes termed as a switch hook is nothing more than a simple
q what is ringer circuit in telephone hand setpurpose of the ringer is to alert destination party of incoming calls audible tone from the ringer
q explain telephone hand set and itrsquos working a standard telephone set is comprised of a transmitter a receiver and electrical network for
q what is dual tone multi frequencydual tone multi frequency dtmf was first introduced in 1963 with 10 buttons in western electric 1500 -type
q explain about common channel signallingcommon channel signalling ccs centralized maintenance and automatic faultdiagnosis and interactive
q what is stored program control stored program controlmodern digital computers use stored programmed concept here a program or a set of instructions
q explain about common controlcommon control those systems in which the control subsystem is outside the switching network are known as common
q what do you understand by progressive controlprogressive control step by step system is an example of progressive control the connection is set up
q compare in-channel signalling with common channel signallingnetwork wide signalling also involves end to end signalling between originating
q what are multistageand single stage networks compare strengths and weaknesses of eachorlist the key difference in single stage two stage and three
q explain about delay systemdelay system a class of telecommunication networks like data networks places the message or call arrivals in
q what do you mean by blocking probabilityblocking probabilityblocking probability p is defined as probability that all the servers in system are
q explain about blocking probabilityand grade of service and what do you mean by delay systems in telecommunication networksansgrade of service in
q illustrate the basic working of modemmodem modems are generally provided by network operators or by vendors who arent necessarily the manufacturers