Patent ID: 9628490
Date: 2017-04-18
CPC Classifications: H04L

Claim:
1. An instant messaging contact name validation method comprising: establishing a trusted relationship among at least two instant messaging servers in a trusted community of instant messaging servers by establishing between the at least two instant messaging servers an authenticated communicative coupling over which session initiation protocol (SIP) messages are exchanged; receiving a request to add a specified contact to a list of instant messaging contacts in association within one of the at least two instant messaging servers in the trusted community of instant messaging servers; and, validating the specified contact with another of the at least two instant messaging servers in the trusted community of instant messaging servers only on behalf of ones of the instant messaging servers in the trusted community among which a trusted relationship has been established by way of the authenticated communicative coupling over which SIP messages are exchanged, the validating comprising passing the specified contact to the another of the at least two instant messaging servers, comparing the specified contact with a list of valid contacts managed in the another of the least two instant messaging servers, and matching the specified contact with the list of valid contacts managed in the another of the least two instant messaging servers.