Summary: IEEE Communications Magazine · April 200464 0163-6804/04/$20.00 © 2004 IEEE
The research reported in
this article was partially
funded by National Aero-
nautics and Space
Administration (NASA)
Grants NAG3-2528 and
NAG3-2922.
ACCEPTED FROM OPEN CALL
INTRODUCTION
The last few years have witnessed a strong trend
of convergence in public switched telephone net-
works (PSTNs), integrated services digital net-
work (ISDN), and IP-based networks, resulting
in the bloom of IP telephony or voice over IP
(VoIP) applications. To reduce communication
costs, it is now a common practice to transport
voice over wide-area IP networks. However,
many of the important services provided by
PSTN networks need the support of an SS7 sig-

Source: Atiquzzaman, Mohammed - School of Computer Science, University of Oklahoma

Collections: Computer Technologies and Information Sciences