Call Forwarding-Based Active Probing for POTS Fault Isolation

To ensure high availability of telephone services, there is considerable interest in network management activities to develop competent fault management mechanisms. In this paper the authors investigate, examine, and try to adapt the current active probing technologies to fault isolation and problem determination of telecommunication networks. The unfitness, issues, and difficulties while adopting these IP-networking probing methods into fault isolation of telecommunication networks are addressed and elaborated. For achieving the goal, call-forwarding which is a dedicated function (or feature) in telecommunication networks is utilized to overcome the unfitness and difficulties while applying probing technologies to fault isolation of telecommunication networks.