COMCOM
2006
13 years 11 months ago
2006
The quality of audio in IP telephony is significantly influenced by various factors, including type of encoder, delay, delay variation, rate and distribution of packet loss, and t...
CEAS
2007
Springer
14 years 5 months ago
2007
Springer
The growing popularity of IP telephony systems has made them attractive targets for spammers. Voice call spam, also known as Spam over Internet Telephony (SPIT), is potentially a ...