Patent Assignment
Reel/Frame 054595/0041
Assignment of Assignor's Interest
Recorded: 2020-12-09
Pages: 3
Assignee
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
5-1, OTEMACHI 1-CHOME, CHIYODA-KU, TOKYO, 1008116, JAPAN
Covered Property
(1)
Sip Proxy Server, Communication Method and Sip Proxy Program