Emergency calls placed from telephone devices connected to a data network are completed
to the appropriate public safety answering point (PSAP). In one embodiment of the present …

BACKGROUND Caller name information is often centrally maintained on the Public
Switched Telephone Network (PSTN) in a Caller Name (CNAM) database. The ability for a …

(54) METHOD AND APPARATUS FOR PLACING 5,966,427 A 10/1999 Shafer et al. A LONG
DSTANCE CALL BASED ON A 5,995,491. A 1 1/1999 Richter et al. VIRTUAL PHONE …

As the Internet is a best-effort delivery network, audio packets may be delayed or lost en
route to the receiver due to network congestion. To compensate for the variation in network …

US8917717B2 - Method and system for multi-modal communications - Google Patents
US8917717B2 - Method and system for multi-modal communications - Google Patents Method …

When the network is homogeneous, choosing the cipher type for a packet telephony
application is simple. It is clear that stream ciphers perform better than block ciphers over …

The introduction of the IP multimedia subsystem on 3G cellular networks and the integration
with other widely deployed wireless networks based on the IEEE 802.11 protocol family …

This paper discusses methods of using the Internet as a communications media between
distributed generator sites to provide new forms of loss-of-mains protection. An analysis of …

We consider the most general case of source clock frequency recovery (SCFR) in packet
networks, ie, asynchronous SCFR through aperiodic packet streams, where there is neither …

The convergence of different commercial wireless technologies poses new opportunities for
always-on connectivity and nearly ubiquitous access in Next Generation Networks (NGNs) …