Telecom Billing Interview Questions and Answers

Prepare Telecom Billing interview questions for freshers and experienced candidates. This page includes important questions, answer previews, preparation guidance, related interview topics and cached content for faster page loading.

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5+ Telecom Billing questions available

About Telecom Billing Interview Preparation

Telecom Billing interview questions and answers for freshers and experienced candidates, including basic concepts, advanced topics, practical examples, project discussion points and common HR preparation guidance.

For better preparation, read each question carefully, understand the concept, prepare one real example, and connect your answer with your project or work experience.

Telecom Billing Questions List

Quick list of important Telecom Billing interview questions. Detailed answer previews are available below.

  1. What is telecom Billing ?
  2. In 1989, AT&T introduced its 900 services to the general public. What was its 900 number service option called?
  3. What is the need of CPG message in ISUP protocol?
  4. What is a superheterodyne receiver?
  5. A 2MB PCM(pulse code modulation) has how many channels?

Question 1: What is telecom Billing ?

Answer: Telecommunications billing is the group of processes of communications service providers that are responsible to collect consumption data, calculate charging and billing information, produce bills to customers, process their payments and manage debt collection.

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Question 2: In 1989, AT&T introduced its 900 services to the general public. What was its 900 number service option called?

Answer: MultiQuest.

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Question 3: What is the need of CPG message in ISUP protocol?

Answer: Consider any call fowarding scenario.... As soon as switch receives Setup, it checks that the Called_Party has forwarded option activated and so tries to forward the call. Meanwhile, Switch sends CPG message towards originator saying that Call is in Progress. A message, sent in either direction during the setup or active phase of the call(ex.inbetween ACM and ANM), indicating that an event, which is of significance, and should be relayed to the originating or terminating access, has occurred.

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Question 4: What is a superheterodyne receiver?

Answer: superhetrodyne receiver is one which has same carrier frequency as the transmitter otherwise the original signal recovery will not be possible.

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Question 5: A 2MB PCM(pulse code modulation) has how many channels?

Answer: 30 voice channels, 1 signaling channel, & 1 synchronization channel.

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Telecom Billing interview preparation tip: Start with basic definitions, then prepare practical examples, common mistakes, project usage, scenario-based questions and HR discussion points.