| 摘要 |
A communications system comprising a first handset (6) adapted to communicate with an interface device (1) over a first communications network (2), the interface device (1) comprising a first call handling element (4) adapted to handle a call received from the first handset (6) over the first communication network (2), a control element (8) and a second call handling element (7) adapted to be connected to a second communication network (3) different to the first communication network (2), the control element (8) adapted to provide the first handset (6) with access to the second communications network (3), via the interface device (1) such that the first handset (6) can pass signalling information to the second communications network to initiate a call between the interface device (1) and a destination handset (15, 16) over the second communication network (3). |
