A packet-oriented communication network is provided having one or more domains
which in each case includes at least one network facility, and a mobile radio network
which includes at least one home location register and uses a signaling protocol.
The network facility of the packet-oriented communication network supports the
signaling protocol for interworking with the home location register of the mobile
radio network. Using the signaling protocol, an inquiry as to whether the routing
of the link is to be performed in the packet-oriented communication network or
in the mobile radio network is directed by the network facility from the packet-oriented
communication network to the home location register of the mobile radio network.
