【单选题】You are too stressed out. Why not _____ some light music? [ ]
【多选题】What are three factors used to determine the amount of bandwidth that is required for a single VoIP call?()
D.
packet overhead (IP/UDP/RTP)
F.
total number of simultaneous calls that are allowed
【判断题】A single call program code (M98) can only call a subprogram once.
【单选题】In a Teleworker deployment with a single IP phone connected to a Cisco 831 router, select the true statement regarding Call Admission Control.()
A.
RSVP is a required configuration to support conference calls without voice packet loss.
B.
The QoS configuration on the 831 router must always provision sufficient bandwidth for two RTP streams.
C.
Call admission control is an issue only when using hardware DSP resources.
D.
When using the conference call features on a 7960 IP phone, only one RTP stream is present regardless of how many extensions are on the conference.
【单选题】There ______ PE lessons today. [ ]