1. A method of communicating voice within a converged networking operating environment wherein a gateway is deployed in a service provider’s telecommunications network and client software is embedded in a target device that is operable within both the telecommunications network and a second network to which the target device is connectable, the service provider’s telecommunications network having a set of one or more network elements that comprise a voice infrastructure, and a database to which a subscriber’s identity is assigned, and wherein a connection is established between the client software and the gateway, the method comprising:
detecting presence of the target device in the second network;
upon detecting presence of the target device, updating given information in the database to identify the gateway as a location of the target device; and
communicating voice to or from the target device via the voice infrastructure.
2. The method as described in claim 1 wherein the target device is mobile Wi-Fi device and the second network is a wireless local area network.
3. The method as described in claim 1 wherein the mobile Wi-Fi device is a laptop having a Wi-Fi interface card.
4. The method as described in claim 1 wherein the subscriber’s identity is a MSISDN.
5. The method as described in claim 2 further including the step of authenticating the mobile Wi-Fi device in the wireless local area network prior to the detecting step.
6. The method as described in claim 2 further including the step of receiving at the gateway an indication that a user of the mobile Wi-Fi device desires to receive voice calls at the mobile Wi-Fi device.
7. The method as described in claim 2 wherein the step of communicating voice to the mobile Wi-Fi device comprises:
receiving an incoming call at a first network element of the voice infrastructure;
having the first network element query the database to identify the location of the mobile Wi-Fi device;
having the gateway set up the incoming call;
transferring data packets between a second network element and the mobile Wi-Fi device.
8. The method as described in claim 7 wherein the first network element is a GMSC and the second network element is a MGW.
9. The method as described in claim 1 wherein the voice infrastructure comprises an S-CSCF.
10. The method as described in claim 1 further including the step of disconnecting the target device from the voice infrastructure.
11. The method as described in claim 1 wherein the target device is a wireless client having a first interface to the wireless local area network and a second interface to the telecommunications network.
12. The method as described in claim 1 wherein the service provider’s telecommunications network is GSM-based.
13. The method as described in claim 1 wherein the service provider’s telecommunications network is CDMA-based.
14. A method of communicating voice within a converged networking operating environment wherein a gateway is deployed in a service provider’s telecommunications network and client software is embedded in a mobile subscriber’s Wi-Fi device that is operable within both the telecommunications network and a wireless local area network to which the mobile Wi-Fi device is connectable, the mobile subscriber having an associated telephone number, comprising:
upon detecting presence of the mobile Wi-Fi device in the wireless local area network, updating given information in a database to identify the gateway as a location of the mobile Wi-Fi device; and
receiving, at the mobile Wi-Fi device, a voice call directed to a mobile subscriber’s telephone number.
15. The method as described in claim 14 wherein the service provider’s telecommunications network is GSM-based.
16. The method as described in claim 14 wherein the service provider’s telecommuncations network is CDMA-based.
17. The method as described in claim 14 wherein the mobile Wi-Fi device is a laptop having a softphone.
18. The method as described in claim 14 wherein presence of the mobile Wi-Fi device in the wireless local area network is detected following a handoff from the service provider’s telecommunications network.
19. The method as described in claim 18 wherein, following handoff, the mobile Wi-Fi device is disconnected from the service provider’s telecommunications network.
20. Apparatus for use in a service provider’s telecommunications network having a set of one or more network elements that route data messages and a database to which a subscriber’s identity is assigned, comprising:
at least one processor;
a first set of instructions executable on the processor and responsive to a service request from a mobile Wi-Fi device for initiating a request to update data message routing information in the database, wherein the updated data message routing information identifies the apparatus as a location of the mobile Wi-Fi device in the service provider’s telecommunications network; and
a second set of instructions executable on the processor for establishing a call setup between a network element and the mobile Wi-Fi device to enable the mobile Wi-Fi device to receive a voice call directed to a mobile subscriber telephone number.
21. A method of communicating voice within a converged networking operating environment wherein a gateway is deployed in a first network and client software is embedded in a device that is operable within both the first network and a second network to which the device is connectable, wherein a user has a given identity in the first network, comprising:
upon detecting presence of the device in the second network, updating given information in a database to identify the gateway as a location of the device; and
while the device is in the second network, receiving, at the device, a voice call directed to the given identity.
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 fuel cell system, comprising:
a) a modular power section, the power section including at least one power module; and
b) a modular energy storage section, the energy storage section including at least one reactant storage module.
2. The fuel cell system of claim 1, wherein the power section includes a plurality of power modules.
3. The fuel cell system of claim 1, wherein the energy storage section includes a plurality of reactant storage modules.
4. The fuel cell system of claim 1, wherein at least one of the power module and reactant storage module include quick disconnect fluids fittings to operably couple the module to the fuel cell system.
5. The system of claim 1, further including a regeneration section, the regeneration section including an electrolyzer configured and adapted to dissociate water into hydrogen and oxygen received from the power module via a fluids manifold.
6. The fuel cell system of claim 5, wherein the regeneration section is in operable communication with the energy storage section, the regeneration section being configured to direct hydrogen and oxygen from the electrolyzer to the energy storage section.
7. The fuel cell system of claim 5, wherein a fuel cell stack produces electricity in a first operative mode, and performs electrolysis in a second operative mode.
8. The fuel cell system of claim 5, further including a supplemental power source, the supplemental power source being operably coupled to the electrolyzer.
9. A fuel cell system, comprising:
a) a modular power section, the power section including at least one power module; and
b) a modular energy storage section, the energy storage section including at least one reactant storage module, wherein the weight and volume characteristics of the fuel cell system are designed to achieve neutral buoyancy.
10. The fuel cell system of claim 9, wherein the fuel cell system is configured and adapted for use in an underwater vehicle.
11. The fuel cell system of claim 10, wherein the fuel cell system is configured and adapted for use in a submarine.
12. A power system, comprising:
a) a regenerative fuel cell system including:
i) a modular power section, the power section including at least one power module; and
ii) a modular energy storage section, the energy storage section including at least one reactant storage module; and
b) an external power source operably coupled to the fuel cell system and a power distribution network.
13. The system of claim 12, wherein the system is adapted and configured to direct electrical power from the external power source to the fuel cell system during off peak periods.
14. The system of claim 13 wherein the system is further adapted and configured to draw electrical power from the fuel cell system during peak usage periods and deliver the power through the power distribution network.
15. The system of claim 12, wherein the fuel cell system further includes a regeneration section having an electrolyzer, the electrolyzer adapted and configured to electrolyze water.
16. The system of claim 12, wherein the fuel cell system includes a fuel cell stack, the stack being adapted and configured to operate in an electrolysis mode to electrolyze water.
17. The system of claim 12, wherein the power distribution system is operably coupled to a stationary electrical grid.
18. The system of claim 12, wherein the power distribution system is operably coupled to a vehicle.
19. The system of claim 18, wherein the vehicle is an automobile.
20. The system of claim 18, wherein the vehicle is an aircraft.