Single Voicemail For Dual-Mode Phones

• US 20090156175A1
• Filed: 12/12/2007
• Published: 06/18/2009
• Est. Priority Date: 12/12/2007
• Status: Active Grant

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Aruba Networks Incorporated (Hewlett-Packard Enterprise Company)
• Inventors: Iyer, Pradeep, Kalkunte, Venkat, Bajpai, Rajneesh
• Granted Patent: US 8,538,387 B2
• Time in Patent Office: Days
• US Class Current: 455/413
• CPC Class Codes: H04M 2207/206 composed of PSTN and wireless network
• CPC Class Codes: H04M 3/42314 in private branch exchanges
• CPC Class Codes: H04M 3/53308 Message originator indirectly connected to the message centre, e.g. after detection of busy or absent state of a called party

Abstract

Single voicemail for dual-mode phones. Functionality is added to a dual-mode phone such that the dual-mode phone when operating in cellular mode sends a predetermined signal when it answers an incoming call. An enterprise mobility controller, on forwarding a call to the cellular side of a dual-mode phone after failing to complete a Wi-Fi connection, starts a timer. If the mobility controller does not receive the predetermined signal before the timer expires, it assumes that the cellular call has been handed off to the cellular voicemail system, terminates the cellular call, and sends the call to the enterprise voicemail system.

Claims

1. A method of operating a controller for controlling dual-mode phones through a first Wi-Fi network and a second cellular network comprising:

receiving at the controller an incoming call for a target number,

retrieving the cellular number associated with the target number,

placing a call to the cellular number,

starting a timer when the cellular connection completes,

if a predetermined signal is received from the cellular connection prior to the passage of a preset time on the timer, connecting the incoming call to the cellular connection, and

if a predetermined signal is not received from the cellular connection prior to the passage of a preset time on the timer, disconnecting the cellular connection and connecting the incoming call to voicemail associated with the target number.

2. The method of claim 1 where the step of receiving at the controller an incoming call for a target number further comprises:

receiving an incoming call for a target number by a PBX, and

passing the incoming call for the target number through the PBX to the controller.

3. The method of claim 1 where the step of placing a call to the cellular number further comprises:

the controller directing the PBX to place a call to the cellular number.

4. A method of operating a controller for controlling dual-mode phones through a first Wi-Fi network and a second cellular network comprising:

receiving an incoming call for a target number by a PBX,

passing the incoming call for the target number through the PBX to the controller,

if the controller determines that the dual-mode phone associated with the target number is within Wi-Fi range, connecting the incoming call to the dual-mode phone through the Wi-Fi network,

if the controller determines that the dual-mode phone associated with the target number is not within Wi-Fi-range;

retrieving the cellular number associated with the target number,

directing the PBX to place a call to the cellular number,

starting a timer when the cellular connection completes,

if a predetermined signal is received from the cellular connection prior to the passage of a preset time on the timer, connecting the incoming call to the cellular connection, and

if a predetermined signal is not received from the cellular connection prior to the passage of a preset time on the timer, disconnecting the cellular connection and connecting the incoming call to voicemail associated with the target number.

5. A method of operating a controller for controlling dual-mode phones through a first Wi-Fi network and a second cellular network comprising:

receiving an incoming call for a target number by a PBX,

passing the incoming call for the target number through the PBX to the controller,

if the controller determines that the dual-mode phone associated with the target number is within Wi-Fi range, connecting the incoming call to the dual-mode phone through the Wi-Fi network,

if the controller determines that the dual-mode phone associated with the target number is not within Wi-Fi-range;

retrieving the cellular number associated with the target number,

directing the PBX to place a call to the cellular number,

starting a timer when the cellular connection completes,

if a predetermined signal is not received from the cellular connection prior to the passage of a preset time on the timer, connecting the incoming call to the cellular connection, and

if a predetermined signal is received from the cellular connection prior to the passage of a preset time on the timer, disconnecting the cellular connection and connecting the incoming call to voicemail associated with the target number.