| 摘要 |
<p>In one aspect, a user terminal is configured to access an IMS network, and to obtain from the network an indication of a current dial-tone condition of the terminal. The terminal displays a graphical user-interface, GUI, that includes a visual indication of the current dial-tone condition of the terminal. In another aspect Application Server function in an IMS network is configured to provide information to a user terminal regarding a current dial-tone condition such that the user terminal is able to display an indication of the current dial-tone also known as call progress tone. Examples given in the application are dial-tone aka ring-back tone, message waiting tone and tones indicating that the user has activated call forwarding unconditional or call diversion. In another aspect a method of enabling a user of a user terminal accessing an IMS network to be informed of a current dial-tone condition of the user terminal includes: providing the user terminal with information regarding the current dial-tone condition; and, based on the obtained information, displaying the current dial-tone condition on a graphical user-interface on the user terminal.</p> |
