H04L41/00
Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
H04L41/00
Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
H04L41/50
Network service management, e.g. ensuring proper service fulfilment according to agreements
H04L41/50
Network service management, e.g. ensuring proper service fulfilment according to agreements
H04L41/5061
characterised by the interaction between service providers and their network customers, e.g. customer relationship management
H04L41/5061
characterised by the interaction between service providers and their network customers, e.g. customer relationship management