TEST 2026 CORE VOIP FEATURES AND
SYSTEM ADMINISTRATION SKILLS
◉ Question: True or False: A 3CX App can use the same 3CX
extension number as a desktop IP phone.
Answer: Answer: True
◉ Question: Does the firewall checker check if ports have been
altered by a firewall / router when data traverses it?
Answer: Answer: Yes
◉ Question: Can 3CX be installed, activated and operated without
internet access?
Answer: Answer: No
◉ Question: True or False: To upload an audio file to a Digital
Receptionist, it must be in the following format: WAV, PCM, 8 kHz, 16
bit, mono
Answer: Answer: True