Business Phone Systems Cloud Phone Systems 2 — Questions and Answers
Question 1: What is a toll-free number prefix used in the United States?
- 800 (and 888, 877, 866, 855, 844, 833) (Correct answer)
- 900
- 700
- 500
Correct answer: 800 (and 888, 877, 866, 855, 844, 833)
US toll-free numbers use the 800 series prefixes (800, 888, 877, 866, 855, 844, 833) where the called party pays for the call.
Question 2: What does 'uptime SLA' mean for a cloud phone provider?
- A contractual guarantee of the percentage of time the service will be available (Correct answer)
- A limit on how many minutes can be used per month
- A security certification for cloud providers
- A promise to answer support tickets within a set timeframe
Correct answer: A contractual guarantee of the percentage of time the service will be available
An uptime SLA (Service Level Agreement) contractually commits the provider to a specific availability percentage, typically 99.99%.
Question 3: What is WebRTC and how does it relate to cloud phone systems?
- A browser technology that enables voice and video calling directly from a web browser without plugins (Correct answer)
- A wireless protocol for desk phone firmware updates
- A standard for encrypting voicemail messages
- A call routing API used by SIP providers
Correct answer: A browser technology that enables voice and video calling directly from a web browser without plugins
WebRTC allows real-time voice and video communication directly in web browsers, enabling browser-based softphone features in cloud systems.
Question 4: What is 'geographic redundancy' in a cloud phone system?
- Running the service across multiple data centers in different locations so one failure doesn't cause an outage (Correct answer)
- Providing local phone numbers in every US state
- Offering calling plans that cover multiple geographic regions
- Storing voicemails in multiple cloud regions simultaneously
Correct answer: Running the service across multiple data centers in different locations so one failure doesn't cause an outage
Geographic redundancy ensures call processing continues if one data center fails by automatically failing over to another location.
Question 5: What is the purpose of an E911 service requirement for US cloud phone systems?
- Routes emergency calls to the correct PSAP and provides location information to first responders (Correct answer)
- Provides enhanced audio quality for emergency services
- Encrypts all calls made to 911
- Allows 911 to call back on the same number
Correct answer: Routes emergency calls to the correct PSAP and provides location information to first responders
E911 (Enhanced 911) ensures that when a VoIP user dials 911, their location data is transmitted to the local Public Safety Answering Point.
Question 6: What is a cloud phone system's 'admin portal' used for?
- A web-based dashboard where administrators manage users, features, call routing, and billing (Correct answer)
- The physical hardware control panel on the PBX
- A mobile app for end users to manage their voicemail
- A monitoring tool that shows network latency
Correct answer: A web-based dashboard where administrators manage users, features, call routing, and billing
The admin portal is a web interface where IT administrators configure phone numbers, extensions, call flows, and account settings.
Business Phone Systems Cloud Phone Systems 2
What is a toll-free number prefix used in the United States?