Method and gateway for controlling call routing
First Claim
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1. A gateway for controlling call routing via a selected network, the gateway comprising:
- a controller configured to support and control the functionality of the gateway;
a wireless area network (LAN) transceiver, coupled to a cooperatively operable wit the controller to form an association with a wireless communications unit;
a local loop interface coupled to and cooperatively operable with the controller to support a connection with a local loop; and
a wide area network (WAN) transceiver, coupled to and cooperatively operable with to controller to support a wireless connection with a WAN and forward a message via the WAN corresponding to call routing of the wireless communication unit and when the association with the wireless communications unit changes; and
wherein the call routing of the wireless communication unit identifies whether traffic to the wireless communication unit should be delivered via the local loop or the WAN,wherein the wireless LAN transceiver cooperatively with the controller receives a call request from the wireless communications unit via a wireless session; and
when the local loop is available, the controller cooperatively with the local loop interface initiates a local loop call request to a public switched telephone network and receives one of a call ringing, a call answer, and a busy signal whereinthe controller together with the local loop interface monitors the local loop for a busy condition;
when the busy condition is detected, the controller cooperatively with the WAN transceiver initiates a WAN call request corresponding to the call request via the WAN and responsive thereto receives, from the WAN, a status message to one of call ringing, a busy signal, and a call answer; and
the controller together with the wireless LAN transceiver forwards to the wireless communications unit a message corresponding to the status message.
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Accused Products
Abstract
A gateway (111, 200) and method for routing calls for a wireless communication unit (113) via a selected network (105, 124, 131) comprises an access point (217) supporting a wireless LAN and a modem (203, 229) for wireless connections to a wireless WAN and an interface 227 with a wired local loop (105). The methodology involves using a first network, such as a local loop if available and a second network, such as a packet data WAN 131 otherwise as well as maintaining the busy status of the first network via the second network.
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Citations
18 Claims
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1. A gateway for controlling call routing via a selected network, the gateway comprising:
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a controller configured to support and control the functionality of the gateway; a wireless area network (LAN) transceiver, coupled to a cooperatively operable wit the controller to form an association with a wireless communications unit; a local loop interface coupled to and cooperatively operable with the controller to support a connection with a local loop; and a wide area network (WAN) transceiver, coupled to and cooperatively operable with to controller to support a wireless connection with a WAN and forward a message via the WAN corresponding to call routing of the wireless communication unit and when the association with the wireless communications unit changes; and wherein the call routing of the wireless communication unit identifies whether traffic to the wireless communication unit should be delivered via the local loop or the WAN, wherein the wireless LAN transceiver cooperatively with the controller receives a call request from the wireless communications unit via a wireless session; and when the local loop is available, the controller cooperatively with the local loop interface initiates a local loop call request to a public switched telephone network and receives one of a call ringing, a call answer, and a busy signal wherein the controller together with the local loop interface monitors the local loop for a busy condition; when the busy condition is detected, the controller cooperatively with the WAN transceiver initiates a WAN call request corresponding to the call request via the WAN and responsive thereto receives, from the WAN, a status message to one of call ringing, a busy signal, and a call answer; and the controller together with the wireless LAN transceiver forwards to the wireless communications unit a message corresponding to the status message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of controlling a call routing via a selected network wherein the selected network being one of among at least a local loop and a wireless wide area network (WAN), the method comprising:
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detecting at a gateway a wireless communications unit operable on a wireless local area network (LAN); establishing a connection between the gateway and the wireless WAN via the wireless WAN; forwarding a message via the wireless WAN, the message including call routing information for the communication unit wherein the call routing information identifies whether traffic to the communication unit should be delivered via the local loop or the wireless WAN; receiving a call request from the wireless communications unit via a wireless LAN session; monitoring a local loop for a busy condition; when the local loop is not busy, initiating a local loop call request corresponding to the call request to a public switched telephone network and receiving one call ringing, a call answer and a busy signal; sending a message via a WAN session indicating the local loop is busy upon initiating the local loop call request and a message indicating the local loop is idle when a call corresponding to the local loop call request has been completed when the busy condition is detected, initiating a WAN call request corresponding to the call request via the WAN and responsive thereto receiving, from the WAN, a status message corresponding to one of call ringing, a busy signal, and a all answer; and forwarding to the wireless communications unit a message corresponding to the status message. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification