Jensen Tools 100 Sereis Benutzerhandbuch

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BudgeTone-100 User Manual 
Grandstream Networks, Inc. 
 
 
- 53 - 
TFTP 
Trivial File Transfer Protocol, is a very simple 
file
 transfer 
protocol
, with the functionality of a 
very basic form of 
FTP
; It uses 
UDP
 (port 69) as its 
transport protocol
.  
 
UDP 
User Datagram Protocol (UDP) is one of the core protocols of the 
Internet protocol suite
. Using 
UDP, programs on networked computers can send short messages known as 
datagrams
 to one 
another. UDP does not provide the reliability and ordering guarantees that 
TCP
 does; 
datagrams may arrive out of order or go missing without notice. However, as a result, UDP is 
faster and more efficient for many lightweight or time-sensitive purposes. 
 
VAD 
Voice Activity Detection or Voice Activity Detector is an algorithm used in 
speech processing
 
wherein, the presence or absence of human speech is detected from the audio samples. 
 
 
VLAN 
A virtual 
LAN
, known as a VLAN, is a logically-independent 
network
. Several VLANs can co-
exist on a single physical 
switch
. It is usually refer to the 
IEEE 802.1Q
 tagging protocol. 
 
VoIP
  
Voice over IP 
VoIP encompasses many protocols. All the protocols do some form of signaling of call 
capabilities and transport of voice data from one point to another. e.g: SIP, H.323, etc.