发明名称 |
Maintenance communication control system in an ISDN service |
摘要 |
A maintenance link is established according to a LAPD between first and second terminal units on a path through which subscribers' packet information is transmitted. In the first and second terminal units, first and second communication state control units are provided for controlling the consistency of the communication state between the two terminal units by sending/receiving communication state control information using the maintenance link.
|
申请公布号 |
US5375117(A) |
申请公布日期 |
1994.12.20 |
申请号 |
US19930141582 |
申请日期 |
1993.10.27 |
申请人 |
FUJITSU LIMITED |
发明人 |
MORITA, SUMIE;HATANO, TAKASHI;TAKANO, RYOUZI;KOGA, HISASHI;SHIOMITSU, TSUTOMU |
分类号 |
H04M3/24;H04Q11/04;(IPC1-7):H04J3/12;H04J3/16 |
主分类号 |
H04M3/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|