NAT traversal in VoIP communication system

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United States of America Patent

PATENT NO 11184320
SERIAL NO

16859785

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Importance

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Abstract

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Methods, systems, and apparatuses are provided for VoIP communication with VoIP-enabled devices via a network address translator (NAT). A set of proxy servers is configured to relay communications through mapped paths of the NAT during operations including VoIP sessions through or with the plurality of VoIP-enabled devices and during other operations not involving VoIP sessions through or with the plurality of VoIP-enabled devices. The mapped paths are susceptible to being unmapped by the NAT if the mapped path is unused for a threshold duration of time. The proxy servers maintain the mapped paths through the NAT by prompting the VoIP-enabled devices to communicate data to the set of proxy servers. More specifically, a VoIP-enabled device is prompted to communicate data to the set of proxy servers, in response to the VoIP-enabled device not communicating with the set of proxy servers for a duration of time exceeding the threshold duration of time.

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Patent Owner(s)

Patent OwnerAddress
WILMINGTON SAVINGS FUND SOCIETY FSBWSFS BANK CENTER 500 DELAWARE AVE WILMINGTON DE 19801

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Zhishen Campbell, US 125 292

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