Office recognition method in ring network
On-line line monitor system
One for N redundancy in a communication system
One-good-pair operation in dual-pair mode
Open system modular electronics architecture
Operation mode changing-over method and multiplex...
Optical communications network
Optical cross-connect restoration technique
Optical layer quasi-centralized restoration
Optical network restoration
Optical termination system
Optical transmission system and transmission line switching cont
Optimal route selection in a content delivery network
Optimal route selection in a content delivery network
Optimized path establishment method and network management...
Optimized SIP routing architecture using an integrated...
Optimizing restoration capacity
Order wire communication control method for line-switched ring n
Order-wire signal handling apparatus
OSI tunnel routing method and the apparatus