Phone Service Business Practice Test
Phone Service Business VoIP Technology & Protocols 2
What is latency in a VoIP call, and what is considered an acceptable one-way delay?
Select your answer
A
Echo caused by hardware; under 10ms
B
The delay between speaking and hearing; under 150ms is ideal per ITU-T
C
Packet loss percentage; under 5%
D
Background noise level; under 30dB
Hint
