Business Phone Systems PBX Systems 2 — Questions and Answers
Question 1: What is a hunt group (ring group) in a PBX?
- A set of extensions that ring sequentially or simultaneously when a specific number is dialed (Correct answer)
- A group of fax machines sharing one line
- A security feature that blocks unwanted callers
- A method to route international calls cheaply
Correct answer: A set of extensions that ring sequentially or simultaneously when a specific number is dialed
A hunt group distributes incoming calls to a defined set of extensions either one at a time or all at once until someone answers.
Question 2: What is the function of a CDR (Call Detail Record)?
- Logs details about each call including duration, time, and number dialed (Correct answer)
- Controls call routing rules in the PBX
- Provides caller ID information to the recipient
- Monitors network bandwidth used by VoIP
Correct answer: Logs details about each call including duration, time, and number dialed
CDRs are records generated by a PBX that document call metadata such as date, time, duration, originating number, and destination.
Question 3: What does 'blind transfer' mean in a PBX system?
- Transferring a call to another extension without speaking to the receiving party first (Correct answer)
- Transferring a call while the original caller is on hold
- Routing a call to an external number automatically
- Forwarding voicemail to another mailbox
Correct answer: Transferring a call to another extension without speaking to the receiving party first
A blind transfer immediately sends a call to another extension without the transferring agent speaking to that extension first.
Question 4: What is a T1 line in the context of business telephony?
- A digital transmission line that carries 24 voice channels at 1.544 Mbps (Correct answer)
- A fiber optic cable for internet access only
- A single analog phone line
- A wireless cellular backup connection
Correct answer: A digital transmission line that carries 24 voice channels at 1.544 Mbps
A T1 line is a dedicated digital circuit that provides 24 DS0 channels, each carrying one voice call at 64 kbps.
Question 5: What is the purpose of a dial plan in a PBX?
- Defines rules for how the PBX routes calls based on the digits dialed (Correct answer)
- Lists all employee extensions in the directory
- Schedules maintenance windows for the PBX
- Configures voicemail storage capacity
Correct answer: Defines rules for how the PBX routes calls based on the digits dialed
A dial plan is a set of rules that instructs the PBX how to process and route calls based on the number pattern dialed.
Question 6: What is Asterisk in the business phone system world?
- An open-source PBX software platform (Correct answer)
- A hardware IP phone manufacturer
- A proprietary cloud PBX service
- A SIP trunk provider
Correct answer: An open-source PBX software platform
Asterisk is a widely used open-source PBX framework that runs on Linux and supports VoIP, traditional telephony, and conferencing.
Business Phone Systems PBX Systems 2
What is a hunt group (ring group) in a PBX?