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Main functional parts of GSM network?

Main functional parts of GSM network : MSC – Mobile switching centre is the core switching entity in GSM network. The MSC is connected to the radio access network (RAN); the RAN is formed by the BSCs and BTSs within the Public Land Mobile Network (PLMN). Users of the GSM network …

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IN Call flow with single ACR

When we making call, It reaches MSC, Then MSC sends IAM (Initial Address Message) to SWITCH. Switch sends IDP to SCP. This IDP contains A party number, B party number, Serving Location Details. SCP will check A party number, B party number, Serving Location Details and sends initial request to RRBS. …

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What are the information contained in IDP?

IDP – Initial Detection Point contains A party number, B party number, MSC Number, Call type (MO call or MT call), Service Key, Camel version and IMSI Details (A Party). The gsmSSF sends CAP IDP to the gsmSCF to start a CAMEL service. The sending of CAP IDP results from …

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What is Sub System Number – SSN?

Signalling Connection Control Part (SCCP) sub system numbers are used to identify applications within network entities which use SCCP signalling. Sub System Number is a number which is assign to every entities and it is used to communicate between own entities. Entities in the GSM network have a subsystem number …

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What is the unit sent in ACR from SCP to MSC?

ACR : Apply Charging Report : ACR will Check the A-Party Balance / tariff related facilities & provides maximum granted time for a call. Apply Charging Report which contains Grant time in seconds. Apply charging (ACH) – this is the instruction from the gsmSCF to the gsmSSF to start or …

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Difference between connect and continue?

What is the Difference between connect and continue? Continue : Continue is the process in which the SCP does not modify the b-party number. ( SCP does not add any prefix before b party number) Connect : Connect is the process in which the SCP modifies the b-party number. For example, …

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What is service key?

Service key : Service key is used to identify the call type whether it is MO call or MT call. Service key is configured in HLR. It is available in IDP – Initial Detection Point. It is mapped with SCP GT. This field identifies the CAMEL service logic applied. Service …

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Basic Problems on Hcf and Lcm

Hi Friends, Here i am going to explain about Hcf and Lcm. In bank Po exams we can get 3 to 5 marks with use of Hcf and Lcm. There is no direct question from Hcf and Lcm. What is Hcf ? Hcf means Highest common factor. Find the Hcf …

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Solve Problems on Syllogism using venn diagram

Hi Friends,   Some of them following rules to solve syllogism, others following venn diagram to solve syllogism. But here i am going to explain syllogism with venn diagram. I feel that the rules are difficult to do syllogisms. venn diagram is easy method to solve syllogism.   Syllogism means …

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