1. A method comprising:
receiving a user request to access profile information associated with an extension on a virtual private branch exchange (PBX) network;
retrieving one or more configuration parameters associated with the extension;
presenting a user interface including displaying the one or more retrieved configuration parameters in the interface;
receiving a user command to update at least one configuration parameter; and
updating the profile information based on the at least one updated configuration parameter.
2. The method of claim 1, further comprising augmenting a call session initiated on the extension based on the updated profile information.
3. The method of claim 1, where retrieving one or more configuration parameters includes retrieving one or more configuration parameters associated with call handling rules configured to handle incoming calls to the extension.
4. The method of claim 3, where receiving the user command to update at least one configuration parameter includes receiving the user command to add, delete or modify at least one call handling rule.
5. The method of claim 1, where receiving the user request includes receiving an access quest to access information relating to virtual PBX services activated on the extension.
6. The method of claim 5, where receiving the user command includes receiving an update to at least one subset of the virtual PBX services including greeting rules, voice mail rules, or call forwarding rules.
7. The method of claim 1, where receiving the user request includes receiving a user identifier associated with the extension through a browser.
8. The method of claim 7, where presenting the user interface includes presenting a web-based user interface in the browser through which the user request is received.
9. A method comprising:
enabling a user interface on a communication device to communicate with an application server rendering virtual PBX services to an extension on a PBX network;
receiving a user command from the communication device through the user interface; and
rendering the virtual PBX services to the extension based on the received web application commands.
10. A system comprising:
a communication device to receive incoming calls at an extension on a PBX network and to initiate a call session for each incoming call; and
an application server to:
render virtual PBX services at the extension, the virtual PBX services having one or more configuration parameters for configuring the call session; and
present a user interface configured to receive a user command to access the one or more configuration parameters.
11. The system of claim 10, where the application server is configured to:
receive an update to the one or more configuration parameters through the user interface;
update the virtual PBX services based on the one or more updated configuration parameters; and
render the updated virtual PBX services at the extension.
12. The system of claim 11, where the update to the one or more configuration parameters includes an update to one or more call handling rules configured to handle incoming calls to the extension.
13. The system of claim 12, where the user command includes a command to add, delete or modify at least one call handling rule.
14. The system of claim 10, where the user interface is configured to receive a user identifier; and
where the application server is configured to authenticate the user identifier before access to the one or more configuration parameters is granted.
15. The system of claim 14, where the user identifier is an email address, the subset of virtual PBX services includes an operator extension, and the user interface has a third interface portion configured to receive a telephone number for the operator extension.
16. The system of claim 10, where the application server is configured to present the user interface in a browser.
17. A method comprising:
displaying a first configuration menu for an extension on a virtual private branch exchange (PBX), the first configuration menu comprising multiple user interface elements, an arrangement of the multiple user interface elements corresponding to a progression of a call to or from the extension;
receiving a user request to select one of the multiple user interface elements, the selected user interface element corresponding to a second configuration menu for the extension;
receiving a user command to update at least one configuration parameter associated with the selected user interface element; and
updating profile information for the extension based on the at least one updated configuration parameter.
18. A method of claim 17, wherein the at least one updated configuration parameter is associated with call handling rules configured to handle incoming calls to or outgoing calls from the extension.
19. A method of claim 17, further comprising:
changing visual characteristics of the user interface element in the first configuration menu to correspond to the second configuration menu when the user interface element is selected, the visual characteristics highlighting the correspondence between the user interface element and the second configuration menu.
20. A method of claim 17, further comprising:
displaying graphical indicators within the first configuration menu that indicate an order of selection for the multiple user interface elements.
21. A method of claim 17, further comprising displaying the second configuration menu proximate the first configuration menu.
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 system for providing frequency control to a power converter, the system comprising:
a controller configured to receive a load signal and generate a first control signal, the load signal indicating an output load for a power converter; and
a signal generator configured to receive the first control signal and generate at least a first output signal;
wherein:
the first output signal is associated with a first signal strength and a first frequency;
the first frequency is inversely proportional to a sum of a first time period, a second time period, and a third time period;
the first signal strength increases with the time during the first time period;
the first signal strength decreases with the time during the second time period;
the signal generator is further configured to generate a second output signal associated with a second signal strength and a second frequency;
the second frequency is inversely proportional to a fourth time period and a fifth time period; and
the second signal strength during the fourth time period is different from the second signal strength during the fifth time period.
2. The system of claim 1 wherein if the output load is less than a threshold load, the third time period increases with the decreasing output load.
3. The system of claim 1 wherein the third time period equals zero if the load signal is not within a predetermined range.
4. The system of claim 3 wherein if the output load is more than or equal to a threshold load, the third time period equals zero.
5. The system of claim 1 wherein the first time period is constant with respect to the load signal, and the second time period is constant with respect to the load signal.
6. The system of claim 1 wherein the first frequency is equal to the second frequency.
7. The system of claim 6 wherein the fourth period is equal to the first period, and the fifth period is equal to a sum of the second period and the third period.
8. The system of claim 6, and further comprising a pulse-width-modulation generator configured to receive at least the second output signal.
9. The system of claim 8 wherein the pulse-width-modulation generator uses the second signal to control a switching frequency for the power converter.
10. The system of claim 1 wherein the controller comprises a first capacitor associated with a first voltage;
wherein:
the load signal represents a load voltage level;
the load voltage level is lower than a threshold voltage level; and
during the third time period, the first voltage increases from the load voltage level to the threshold voltage level.
11. A system for providing frequency control to a power converter, the system comprising:
a controller configured to receive a load signal and generate a first control signal, the load signal indicating an output load for a power converter;
a signal generator configured to receive the first control signal and generate at least a first output signal; and
a frequency variation generator configured to output a second control signal to the signal generator;
wherein:
the first output signal is associated with a first signal strength and a first frequency;
the first frequency is inversely proportional to a sum of a first time period, a second time period, and a third time period;
the first signal strength increases with the time during the first time period;
the first signal strength decreases with the time during the second time period; and
the signal generator is configured to use the second control signal to vary the first frequency.
12. The system of claim 11 wherein the frequency variation generator includes a clock randomizer.
13. The system of claim 11 wherein if the output load is less than a threshold load, the third time period increases with the decreasing output load.
14. The system of claim 11 wherein the third time period equals zero if the load signal is not within a predetermined range.
15. The system of claim 14 wherein if the output load is more than or equal to a threshold load, the third time period equals zero.
16. The system of claim 11 wherein the first time period is constant with respect to the load signal, and the second time period is constant with respect to the load signal.
17. The system of claim 11 wherein the controller comprises a first capacitor associated with a first voltage;
wherein:
the load signal represents a load voltage level;
the load voltage level is lower than a threshold voltage level; and
during the third time period, the first voltage increases from the load voltage level to the threshold voltage level.
18. A system for providing frequency control to a power converter, the system comprising:
a first controller configured to receive a load signal and generate a first control signal, the load signal indicating an output load for a power converter;
a compensation system configured to receive an input signal for the power converter and generate a second control signal; and
a signal generator configured to receive the first control signal and the second control signal and generates at least an output signal;
wherein:
the output signal is associated with a signal strength and a frequency;
the frequency is inversely proportional to a sum of a first time period, a second time period, and a third time period;
the signal strength increases with the time at a first slope during the first time period; and
the signal strength decreases with the time at a second slope during the second time period;
wherein the compensation system comprises:
a sensing system configured to receive the input signal and generate a third control signal; and
a compensation controller configured to receive the third control signal and output the second control signal.
19. The system of claim 18 wherein the first slope is constant with respect to the load signal, and the second slope is constant with respect to the load signal.
20. The system of claim 18 wherein the first time period is constant with respect to the input signal.
21. The system of claim 20 wherein the first time period is constant with respect to the load signal.
22. The system of claim 18 wherein the second time period is constant with respect to the input signal.
23. The system of claim 22 wherein the second time period is constant with respect to the load signal.
24. The system of claim 18 wherein the third time period varies with the load signal if the load signal is within a predetermined range.
25. The system of claim 24 wherein if the output load is less than a threshold load, the third time period increases with the decreasing output load.
26. The system of claim 25 wherein the third time period equals zero if the load signal is not within a predetermined range.
27. The system of claim 18, and further comprising a pulse-width-modulation generator configured to receive at least the output signal.
28. The system of claim 27 wherein the pulse-width-modulation generator is configured to use the output signal to perform a slope compensation for a feedback loop.
29. The system of claim 28 wherein the slope compensation is associated with a slope compensation ratio, the slope compensation ratio being constant with respect to the input signal.
30. The system of claim 18 wherein the first control signal comprises a plurality of signals.
31. A method for providing frequency control to a power converter, the method comprising:
receiving a load signal, the load signal indicating an output load for a power converter;
generating a control signal in response to the load signal;
processing information associated with the control signal;
generating a first output signal based on at least information associated with the control signal; and
generating a second output signal associated with a second signal strength and a second frequency;
wherein:
the first output signal is associated with a first signal strength and a first frequency;
the first frequency is inversely proportional to a sum of a first time period, a second time period, and a third time period;
the first signal strength increase with the time during the first time period;
the first signal strength decrease with the time during the second time period;
the second frequency is inversely proportional to a fourth time period and a fifth time period; and
the second signal strength during the fourth time period is different from the second signal strength during the fifth time period.
32. The method of claim 31 wherein the third time period equals zero if the load signal is not within a predetermined range.
33. A method for providing frequency control to a power converter, the method comprising:
receiving a load signal, the load signal indicating an output load for a power converter;
generating a first control signal in response to the load signal;
receiving an input signal for the power converter;
generating a second control signal in response to the input signal;
processing information associated with the first control signal and the second control signal; and
generating an output signal based on at least information associated with the first control signal and the second control signal;
wherein:
the output signal is associated with a signal strength and a frequency;
the frequency is inversely proportional to a sum of a first time period, a second time period, and a third time period;
the signal strength increases with the time at a first slope during the first time period; and
the signal strength decreases with the time at a second slope during the second time period;
wherein the process for generating a second control signal in response to the input signal includes:
generating a third control signal based on at least information associated with the input signal;
receiving the third control signal; and
outputting the second control signal in response to the third control signal.
34. The method of claim 33, and further comprising:
performing a slope compensation for the power converter;
wherein:
the slope compensation is associated with a slope compensation ratio; and
the slope compensation ratio is constant with respect to the input signal.
35. A method for providing frequency control to a power converter, the method comprising:
receiving a load signal, the load signal indicating an output load for a power converter;
generating a first control signal in response to the load signal;
processing information associated with the first control signal;
generating an output signal based on at least information associated with the first control signal, the output signal being associated with a signal strength and a frequency;
receiving a second control signal; and
using the second control signal to vary the frequency;
wherein:
the frequency is inversely proportional to a sum of a first time period, a second time period, and a third time period;
the signal strength increase with the time during the first time period; and
the signal strength decrease with the time during the second time period.