1. A method for a first terminal device to handle a busy line, comprising:
sending a number query request when a second terminal device to which the first terminal device initiates a first call request is in a busy state;
receiving a feedback on the number query request, wherein the feedback is provided based on a second call request initiated by the second terminal device; and
if the feedback indicates that the second terminal device is calling the first terminal device, sending a connecting request to a server or sending a terminating request to one of the server and the second terminal device, wherein the connecting request indicates a request to connect the first terminal device with the second terminal device, and the terminating request indicates a request to terminate the second call request initiated by the second terminal device.
2. The method according to claim 1, wherein the feedback includes a number in the second call request initiated by the second terminal device or a detecting result indicating whether the number in the second call request initiated by the second terminal device is a number associated with the first terminal device.
3. A method for handling a busy line, comprising:
receiving a number query request sent by a first terminal device, wherein the number query request is sent by the first terminal device when a second terminal device to which the first terminal device initiates a first call request is in a busy state; and
sending a feedback to the first terminal device based on a second call request initiated by the second terminal device, wherein the feedback indicates that the second terminal device is calling the first terminal device.
4. The method according to claim 3, further comprising:
detecting whether a number in the second call request initiated by the second terminal device is a number associated with the first terminal device; and
sending a detecting result in the feedback to the first terminal device.
5. The method according to claim 3, further comprising;
receiving a connecting request sent by the first terminal device, wherein the connecting request is sent to a server by the first terminal device when the first terminal device receives the feedback indicating that the second terminal device is calling the first terminal device; and
connecting the first terminal device with the second terminal device in response to the connecting request.
6. The method according to claim 3, further comprising:
receiving a terminating request sent by the first terminal device, wherein the terminating request is sent to a server by the first terminal device when the first terminal device receives the feedback indicating that the second terminal device is calling the first terminal device; and
terminating the second call request initiated by the second terminal device in response to the terminating request.
7. The method according to claim 6, further comprising:
sending a termination indication message to the second terminal device, wherein the termination indication message notifies the second terminal device not to continue initiating the second call request.
8. The method according to claim 3, further comprising:
receiving a terminating request sent by the first terminal device, wherein the terminating request is sent to the second terminal device by the first terminal device when the first terminal device receives the feedback indicating that the second terminal device is calling the first terminal device; and
terminating the second call request of the second terminal device in response to the terminating request.
9. A method for handling a busy line, comprising:
receiving a terminating request sent by a first terminal device, wherein the terminating request is sent to a second terminal device by the first terminal device when a feedback received by the first terminal device from a server indicates that the second terminal device is calling the first terminal device; and
terminating a call request initiated by the second terminal device in response to the terminating request.
10. The method according to claim 9, further comprising:
displaying the terminating request;
receiving a user input signal on the terminating request; and
terminating the call request based on the user input signal.
11. A first terminal device, comprising:
a processor; and
a memory for storing instructions executable by the processor;
wherein the processor is configured to:
send a number query request when a second terminal device to which the first terminal device initiates a first call request is in a busy state;
receive a feedback on the number query request, wherein the feedback is provided based on a second call request initiated by the second terminal device;
if the feedback indicates that the second terminal device is calling the first terminal device, send a connecting request to a server or send a terminating request to one of the server and the second terminal device, wherein the connecting request indicates a request to connect the first terminal device with the second terminal device, and the terminating request indicates a request to terminate the second call request initiated by the second terminal device.
12. The first terminal device according to claim 11, wherein the feedback includes a number in the second call request initiated by the second terminal device or a detecting result indicating whether the number in the second call request initiated by the second terminal device is a number associated with the first terminal device.
13. A server, comprising:
a processor; and
a memory for storing instructions executable by the processor;
wherein the processor is configured to:
receive a number query request sent by a first terminal device, wherein the number query request is sent by the first terminal device when a second terminal device to which the first terminal device initiates a first call request is in a busy state; and
send a feedback to the first terminal device based on a second call request initiated by the second terminal device, wherein the feedback indicates that the second terminal device is calling the first terminal device.
14. The server according to claim 13, wherein the processor is further configured to:
detect whether the number in the second call request initiated by the second terminal device is a number associated with the first terminal device; and
send a detecting result in the feedback to the first terminal device.
15. The server according to claim 13, wherein the processor is further configured to:
receive a connecting request sent by the first terminal device, wherein the connecting request is sent to the server by the first terminal device when the first terminal device receives the feedback indicating that the second terminal device is calling the first terminal device; and
connect the first terminal device with the second terminal device in response to the connecting request.
16. The server according to claim 13, wherein the processor is further configured to
receive a terminating request sent by the first terminal device, wherein the terminating request is sent to the server by the first terminal device when the first terminal device receives the feedback indicating that the second terminal device is calling the first terminal device; and
terminate the second call request initiated by the second terminal device in response to the terminating request.
17. The server according to claim 16, wherein the processor is further configured to:
send a termination indication message to the second terminal device, wherein the termination indication message notifies the second terminal device not to continue initiating the second call request.
18. The server according to claim 13, wherein the processor is further configured to:
receive a terminating request sent by the first terminal device, wherein the terminating request is sent to the second terminal device by the first terminal device when the first terminal device receives the feedback indicating that the second terminal device is calling the first terminal device; and
terminate the second call request of the second terminal device in response to the terminating request.
19. A second terminal device, comprising:
a processor; and
a memory for storing instructions executable by the processor;
wherein the processor is configured to:
receive a terminating request sent by a first terminal device, wherein the terminating request is sent to the second terminal device by the first terminal device when a feedback received by the first terminal device from a server indicates that the second terminal device is calling the first terminal device; and
terminate a call request initiated by the second terminal device in response to the terminating request.
20. The second terminal device according to claim 19, wherein the processor is further configured to:
display the terminating request;
receive a user input signal on the terminating request; and
terminate the call request based on the user input signal.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A digital display including a processor and memory, for displaying an image, the image having a range of brightness, the image being composed of a plurality of binary bit plane images displayed for varying amounts of time and in a sequence, the time and sequence of the bit plane images’ display being determined by a sequence file stored in the memory.
2. A digital display according to claim 1, wherein the sequence file may be overwritten by a further sequence file.
3. A digital display according to claim 1, wherein the sequence file is uploaded to the digital display by a file uploader that monitors the connection and indicates when the connection has been broken and another digital display has been connected.
4. A method of installing a sequence file on a digital display comprising the steps of creating a sequence file, storing the sequence file, uploading the sequence to a processor in the digital display.
5. A method according to claim 4 wherein the steps include simulating the effect of the sequence on the image produced by a digital display implementing that sequence file.
6. A method according to claim 4 wherein the steps include compiling the sequence from an editable form into a binary form.
7. A method according to claim 4 wherein the sequence file contains metadata.