Method and apparatus for enhanced internet telephony
AssigneeVonage Network LLC
InventorsLouis Holder, Jeffrey Citron
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Abstract
A method and apparatus for enhanced Internet telephony ensures that communication between a source and destination is not interrupted by common network address translation. According to one aspect of the invention, communication may continue through a router that employs network address translation.
Claims21
An internet telephony system comprising an internet telephony server configured to process a SIP signaling message to setup a communication of streaming packets with a media terminal adapter on a first network, the internet telephony server being on a second network and further configured to replace a first network address of the media terminal adapter in one or more fields of the SIP signaling message with a second network address to accommodate the first and second networks being separated by a router performing network address translation between corresponding network addresses on the first and second networks, wherein the second network address was received from the router.
A method of providing internet telephony comprising:
- receiving at an internet telephony server on a second network a Session Initiation Protocol (SIP) signaling message for setting up a communication of streaming packets with a media terminal adapter on a first network;
- replacing a network address of the media terminal adapter in one or more fields of the SIP signaling message with a different network address to accommodate the first and second networks being separated by a router performing network address translation between corresponding network addresses on the first and second networks, wherein the different network address is received from the router.
An internet system comprising:
- an internet telephony server configured to receive and process a SIP signaling message to setup a communication of streaming packets with a media terminal adapter on a first network,
- the internet telephony server being on a second network and further configured to replace a first network address of the media terminal adapter in one or more fields of the SIP signaling message with a second network address;
- and,
- a NAT router separating the first network from the second network and configured to provide the second network address to the internet telephony server via the SIP signaling message.
Dependencies are inferred from the claim text.