公开(公告)号：DE2801608A1

公开(公告)日：1978-07-27

申请号：DE2801608

申请日：1978-01-14

Applicant: IBM

Inventor： BOYD WILLIAM WELLER ,  GRAFE ROBERT JOSEPH ,  PINGRY III CARL OSCAR

IPC: H04M11/06 ,  G06F21/00 ,  H04L9/32 ,  H04L12/22 ,  H04L29/06 ,  H04M11/00 ,  H04L11/26 ,  H04M3/38 ,  G06F3/04 ,  H04L11/06

Abstract: A method of selectively communicating data between users in a communication system comprising the steps of: assigning a local user identifier to each user of said system; transmitting the local user identifier of a calling user to a called user; comparing the local user identifier of the calling user with at least one identifier of a predetermined remote user assigned to the called user; and if the comparison is positive, transmit the local user identifier of the called user to the calling user to establish an exchange of data between said called user and said calling user. (Machine-translation by Google Translate, not legally binding)