| 摘要 |
A method of communicating between user equipment, involved in an active communication with a first communications system, and a second communications system is disclosed. Communication between the user equipment and the first communications system uses a first communication protocol and communication between the second communications system and the user equipment uses a second, different communications protocol. The method comprises the steps of transmitting a signal from the user equipment to the first communications system, the signal comprising a signaling message, in accordance with said second protocol, and a protocol discriminator; receiving the signal in the first communications system, identifying in the received signal the presence of the protocol discriminator and forwarding the signaling message from the first communications system to the second communications system. A method of initiating a handing over of an active communication and corresponding communications apparatus are also disclosed. |
