METHOD OF AND DEVICE FOR DETERMINING A COMMUNICATION NETWORK FOR PROVIDING A COMMUNICATION SERVICE TO A TERMINAL COMMUNICATION DEVICE

In various embodiments, a method of determining a communication network for providing a communication service to a terminal communication device is provided. The method may include sending, to a network determination entity, a request message to determine a communication network that has a connectivity session with the terminal device, the request message including a unique identifier identifying the terminal device; receiving an indication message from the network determination entity including an indication of at least one communication network out of a plurality of communication networks in which the terminal device has a connectivity session; and selecting the indicated communication network for initiating the communication service in case the indicated communication network supports the communication service.