公开(公告)号：EP0681773A4

公开(公告)日：1996-09-04

申请号：EP94929824

申请日：1994-09-16

申请人： AT & T CORP

发明人： BOYLE VALERIE I ,  MARTIN RONALD BRUCE ,  SWANSON ROBERT ALLEN

IPC分类号： H04Q3/00 ,  H04M7/00 ,  H04M3/00

CPC分类号： H04Q3/0025 ,  H04Q3/0016 ,  H04Q3/0029 ,  H04Q2213/13515

摘要： An end office (102) of the PSTN (101), which employs independent switching networks (142, 152) which share one or more office codes, is served by a single assigned node (105), screens all incoming call messages (191) (IAM)'s; directs messages which include an appropriate Channel Identification Code (CIC) to the switching network that serves that CIC; rejects messages that include an improper CIC; and requests that the calling office assign a different CIC to the incoming call. In an alternate configuration, a signaling message intercept unit (512) is interposed between a signal transfer point (108) (STP) and end switches (103, 104), to determine which of two or more switches should receive a message, based on the directory number, a circuit identifier or a message index of the received message, and forwards the message to the correct switch.

公开(公告)号：EP0730805A4

公开(公告)日：1996-07-05

申请号：EP94920745

申请日：1994-06-15

申请人： AT & T CORP

发明人： MARTIN RONALD BRUCE

IPC分类号： H04M3/00 ,  H04Q3/00 ,  H04M7/00 ,  H04M5/00

CPC分类号： H04Q3/0029 ,  H04Q3/0016 ,  H04Q3/0025 ,  H04Q2213/13515

摘要： An end office (102) of the PSTN (101), which employs independent switching networks (103, 104) which share one or more office codes, is served by a single assigned node (105) on the CCS network. The signaling processor (106) which serves the assigned node (105), screens all incoming call messages (IAM)'s (191); directs messages which include an appropriate Channel Identification Code (CIC) to the switching network that serves that CIC; rejects messages that include an improper CIC; and requests that the calling office assign a different CIC to the incoming call.