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公开(公告)号:US10771453B2
公开(公告)日:2020-09-08
申请号:US15397757
申请日:2017-01-04
Applicant: Cisco Technology, Inc.
Inventor: Kim Nam , Dusko Zgonjanin
Abstract: In one embodiment, a telecommunication apparatus includes a processor to generate a telephone call set-up message including a user-to-user information (UUI) field, and include a security token in the UUI field of the telephone call set-up message, and a network interface to send the telephone call set-up message to a telephone network. Related apparatus and methods are also described.