Chapter 12 Quiz Flashcards
All VoIP calls are carried over the Internet.
True
False
False
IP telephones are directly connected to the local loop.
True
False
False
An off-the-shelf workstation can be programmed to act like an IP telephone.
True
False
True
SIP and H.323 account for communication between media gateways.
True
False
False
It is more difficult to transmit VoIP and video over IP signals over a packet-switched network than it is to transmit data signals.
True
False
False
____ is the use of one network to simultaneously carry voice, video, and data communications.
Multicasting
Unicasting
Divergence
Convergence
Convergence
____ describes the use of any network to carry voice signals using the TCP/IP protocol.
Telephony
Internet telephony
IP telephony
Voice telephony
IP telephony
When VoIP relies on the Internet, it is often called ____.
telephony
Internet telephony
IP telephony
voice telephony
Internet telephony
IPTV, videoconferencing, streaming video, and IP multicasting belong to the range of services known as ____.
voice over IP
data over IP
video over IP
Web over IP
video over IP
____ messaging is a service that makes several forms of communication available from a single user interface.
Unified
Instant
Diversified
Open
Unified
Using VoIP over a WAN allows an organization to avoid paying long-distance telephone charges, a benefit known as ____.
charge bypass
distance bypass
toll bypass
easypass
toll bypass
When using an analog telephone, a VoIP adapter that performs analog-to-digital conversion is known as a(n) ____.
VTA (voice telephone adapter)
ATA (analog telephone adapter)
DTA (digital telephone adapter)
DTA (data telephone adapter)
ATA (analog telephone adapter)
In general, a(n) ____ is a private switch that accepts and interprets both analog and digital voice signals.
IP-PBX
analog PBX
Data PBX
IT-PBX
IP-PBX
When a caller uses an IP telephone, his or her voice is immediately digitized and issued from the telephone to the network in ____ form.
segment
frame
circuit
packet
packet
A computer programmed to act like an IP telephone is known as a(n) ____.
video phone
softphone
streaming server
compu-phone
softphone