Sciweavers

COMCOM
2006
120views more  COMCOM 2006»
13 years 6 months ago
On the impact of loss and delay variation on Internet packet audio transmission
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...
Lopamudra Roychoudhuri, Ehab S. Al-Shaer, Gregory ...
NETWORKING
2004
13 years 7 months ago
Self-Admission Control for IP Telephony Using Early Quality Estimation
Abstract. If quality of service could be provided at the transport or the application layer, then it might be deployed simply by software upgrades, instead of requiring a complete ...
Olof Hagsand, Ignacio Más Ivars, Ian Marsh,...
ICC
2000
IEEE
137views Communications» more  ICC 2000»
13 years 10 months ago
Internet QoS Routing with IP Telephony and TCP Traffic
— In this paper, we propose the use of QoS routing to enhance the support of IP Telephony. Our proposed scheme is based on QoS intradomain OSPF routing, an extension of the conve...
Alex Dubrovsky, Mario Gerla, Scott Seongwook Lee, ...
NDSS
2003
IEEE
13 years 11 months ago
Secure IP Telephony using Multi-layered Protection
This paper presents the design and analysis of a multilayer protection scheme against denial-of-service (DoS) attacks in IP telephony enabled enterprise networks. While there are ...
Brennen Reynolds, Dipak Ghosal
AICT
2006
IEEE
128views Communications» more  AICT 2006»
14 years 7 days ago
Providing Secure Services in Peer-to-Peer Communications Networks with Central Security Servers
IP Telephony based on Peer-to-Peer (P2P) technology has being gaining attentions for its innovative approach to providing VoIP service. At the same time, it has raised many new re...
Feng Cao, David A. Bryan, Bruce Lowekamp
LCN
2007
IEEE
14 years 11 days ago
Modeling and Performance Analysis of Telephony Gateway REgistration Protocol
Abstract—Telephony gateways are devices that interface between IP telephony networks and the PSTN. A telephony proxy or location server (LS) that attempts to connect a call for a...
Kushal Kumaran, Anirudha Sahoo