Telecom Billing Basics

What is the full form of CDR?

• A.

  Credit Data Record

• B.

  Call Data Record

• C.

  Correcr Data Record

The normalization of the CDR's is done by the Rating & Charging engine.

• A.

  True

• B.

  False

PSTN stands for?

• A.

  Public Synchronised Telephone Network

• B.

  Public Switched Termination Network

• C.

  Public Switched Telephone Network

• D.

  Private Switched Telephone Network

The area covered by a cellular base station is called a _____________

Which is the database within a GSM network which stores all the subscriber data. An important element in the roaming process

• A.

  Home Location Register

• B.

  Subscriber Resource Number

• C.

  Subscriber Location Number

• D.

  Subscriber Number Register

All Mobile Equipments are physically identified by?

• A.

  IMSI

• B.

  IMEI

• C.

  MSISDN

________________ is the network entity which switches SMS traffic.

The ability to make and receive calls on the same mobile phone when travelling outside the area of the home network operator is called ____________

GSM makes use of which technique for transmitting signals.

• A.

  Code Division Multiple Access (CDMA)

• B.

  Time Division Multiple Access (TDMA)

• C.

  Frequency Division Multiple Acess (FDMA)

There are following parts of an IMSI

• A.

  Mobile Network Code (MNC)

• B.

  Country Code (CC)

• C.

  Subscriber Number (SN)

• D.

  Mobile Country Code (MCC)

• E.

  Mobile Subscriber Identification Number (MSIN)

Which telecom company has the largest subscriber base?

• A.

  AT&T

• B.

  Vodafone Group

• C.

  China Mobile

• D.

  Telefonica