PBX Systems Flashcards
6 cards from real Business Phone Systems practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 PBX Systems flashcards as text
What is the difference between a hosted PBX and an on-premises PBX?
Answer: Hosted PBX is managed by a provider in the cloud; on-premises hardware is installed at the business location
A hosted PBX is maintained by a third-party provider in their data center, while on-premises PBX equipment is installed and managed at the business site.
What is call recording compliance primarily important for in the US?
Answer: Industries like finance and healthcare must record calls to meet regulatory requirements such as MiFID II, HIPAA, and Dodd-Frank
Regulated US industries including finance, healthcare, and legal services must record and retain calls to comply with federal and state regulations.
What is DNIS (Dialed Number Identification Service)?
Answer: A feature that tells the receiving PBX which number the caller dialed
DNIS delivers the destination phone number to the PBX so it can route the call appropriately to the correct department or IVR.
What does 'follow-me' call routing do?
Answer: Rings a sequence of phone numbers until the call is answered or goes to voicemail
Follow-me routing rings multiple numbers in a defined sequence — such as desk phone, then mobile — so users never miss a call.
What is the purpose of a PRI (Primary Rate Interface)?
Answer: Provides 23 B-channels and 1 D-channel for carrying up to 23 simultaneous calls on a single T1 line
A PRI uses ISDN signaling over a T1 to deliver 23 voice-grade B-channels and one D-channel for signaling, supporting 23 concurrent calls.
What is least-cost routing (LCR) in a PBX?
Answer: Automatically routes outbound calls over the cheapest available carrier or trunk
LCR analyzes available carriers and routes each outbound call through the option with the lowest per-minute cost.