Troubleshooting & Maintenance 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 Troubleshooting & Maintenance flashcards as text
What is the best practice for maintaining IP phone firmware in a business environment?
Answer: Test new firmware on a small group of phones before deploying to the entire fleet
Staged firmware rollouts allow IT teams to catch compatibility issues before they affect all users across the organization.
What does a regular audit of CDR (Call Detail Records) help a business administrator identify?
Answer: Unauthorized calls, toll fraud, billing errors, and unusual call patterns
Regular CDR audits catch toll fraud (unusual international call patterns), billing discrepancies, and compliance issues before they become costly.
What is toll fraud in a business phone system context?
Answer: Unauthorized use of a business's phone system to make calls at the business's expense, often international calls
Toll fraud occurs when attackers compromise a PBX or SIP credentials to make unauthorized calls charged to the victim's account.
What is the purpose of a business continuity plan for a phone system?
Answer: Defines procedures to keep calls operational during outages, including failover numbers, mobile forwarding, and backup connectivity
A phone system BCP ensures calls continue to be received and made even when the primary system, internet, or power is unavailable.
What security measure helps prevent unauthorized SIP registration on a business phone system?
Answer: Using strong, unique SIP passwords and restricting registration to known IP address ranges
Strong SIP credentials combined with IP allowlisting prevents attackers from registering rogue devices or brute-forcing extension passwords.
What is the recommended frequency for reviewing and updating a business phone system's configuration?
Answer: Quarterly reviews at minimum, plus immediately after organizational changes like staff additions or office moves
Regular quarterly audits catch stale configurations, while event-driven reviews ensure the system stays aligned with business needs after changes.