Patent
Efficient handover of media communications in heterogeneous IP networks using handover procedure rules and media handover relays
TLDR
In this paper, a handover of a media session between heterogeneous Internet Protocol (IP) networks is discussed, where a mobile device with Internet access can operate a software program to communicate with a corresponding node, and the corresponding node may access the Internet through a firewall which may include Network Address Translation (NAT)-routing functionality.Abstract:
Methods and systems are provided for efficient handover of a media session between heterogeneous Internet Protocol (IP) networks. A mobile device with Internet access can operate a software program to communicate with a corresponding node. The corresponding node may access the Internet through a firewall which may include Network Address Translation (NAT)-routing functionality. The mobile device establishes a media session with a corresponding node via the transmission of a first media stream and receipt of a second media stream, and a media-control channel can optionally be implemented. The mobile device can acquire Internet access through a second IP address, and packets routed between the second IP address and the Internet may traverse a firewall. The mobile device can evaluate a set of network parameters at the second IP address from a stored Local Area Network (LAN) profile. A software routine can (i) evaluate that handover of the media session from the first IP address to the second IP address is preferred and (ii) select an efficient handover procedure according to handover procedure rules.read more
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References
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Journal ArticleDOI
Application-layer mobility using SIP
Henning Schulzrinne,Elin Wedlund +1 more
TL;DR: How the Session Initiation Protocol (SIP) can help provide terminal, personal, session and service mobility to applications ranging from Internet telephony to presence and instant messaging is described.
Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer Protocols
TL;DR: This document describes a protocol for Network Address Translator (NAT) traversal for multimedia session signaling protocols based on the offer/answer model, such as the Session Initiation Protocol (SIP).
Patent
System for Providing Mobile VoIP
Tagg James,Andrew Donald McEwan +1 more
TL;DR: In this paper, a system for providing handoff for a mobile devices comprising a mobile phone programmed to automatically handover between differing data bearers and to optimally detect those bearers in a roaming environment keeping power consumption to a minimum.
Patent
Efficient handover of media communications in heterogeneous IP networks using LAN profiles and network handover rules
TL;DR: In this article, a handover of a media session between heterogeneous Internet Protocol (IP) networks is discussed, where a mobile device with Internet access can operate a software program to communicate with a corresponding node.
Patent
Voip enabled femtocell with a usb transceiver station
TL;DR: In this article, a femtocell can comprise a USB Transceiver Station that is connected to a personal computer through a universal serial bus port, which provides both power and a multi-megabit per second connection between the personal computer and the USB transceiver station.