Home » Cisco » 210-060 v.2 » Which option is the Cisco recommended maximum jitter value of voice traffic over the network?
Which option is the Cisco recommended maximum jitter value of voice traffic over the network?
A. 50 ms
B. 60 ms
C. 40 ms
D. 30 ms
Correct Answer: D
Explanation/Reference:
Voice calls, either one-to-one or on a conference connection capability, require the following:
=< 150 ms of one-way latency from mouth to ear (per the ITU G.114 standard)
=< 30 ms jitter
=< 1 percent packet loss
17 to 106 kbps of guaranteed priority bandwidth per call (depending on the sampling rate, codec, and Layer 2 overhead)
150 bps (plus Layer 2 overhead) per phone of guaranteed bandwidth for voice control traffic
Reference: http://www.ciscopress.com/articles/article.asp?p=471096&seqNum=6
