Abstract: Described herein is multi-mode communications system that comprises at (east one internet network {540, 545), a mobile network (560), a platform (505) and a multi-mode terminal (575). Both the platform (505) and the terminal (575) are connectable to one of the internet networks (540, 545) and to the mobile network (560). A voice quality control module (525) is provided for determining if the voice call quality of a call to or from the terminal (575) via an internet network (540, 545) meets a predetermined minimum voice quality level. Handover between the internet network (540, 545) and mobile network (560) is initiated when the voice call quality falls below the predetermined minimum voice quality level.

Abstract: Described herein is multi-mode communications system (200) that comprises at least one IP network, at least one mobile communications network, at least one multi-mode terminal (175) connectable to each of said IP network and the mobile telecommunications network, a routing server (120) for routing incoming calls from a caller to a multi-mode terminal (175), and an adaptive location register database (230) for storing at least one record relating to each multi-mode terminal (175). An incoming call (205) is received by the routing server (120). The routing server (120) interrogates an adaptive location register server (220) that is associated with the adaptive location register database (230) to determine current availability for routing the incoming call (205) to the multi-mode terminal (175).

Abstract: Described herein is multi-mode communications system (200) that comprises at least one IP network, at least one mobile communications network, at least one multi-mode terminal (175) connectable to each of said IP network and the mobile telecommunications network, a routing server (120) for routing incoming calls from a caller to a multi-mode terminal (175), and an adaptive location register database (230) for storing at least one record relating to each multi-mode terminal (175). An incoming call (205) is received by the routing server (120). The routing server (120) interrogates an adaptive location register server (220) that is associated with the adaptive location register database (230) to determine current availability for routing the incoming call (205) to the multi-mode terminal (175).

Abstract: Described herein is multi-mode communications system that comprises at (east one internet network {540, 545), a mobile network (560), a platform (505) and a multi-mode terminal (575). Both the platform (505) and the terminal (575) are connectable to one of the internet networks (540, 545) and to the mobile network (560). A voice quality control module (525) is provided for determining if the voice call quality of a call to or from the terminal (575) via an internet network (540, 545) meets a predetermined minimum voice quality level. Handover between the internet network (540, 545) and mobile network (560) is initiated when the voice call quality falls below the predetermined minimum voice quality level.