Seamless transitions of active calls between enterprise telecommunications networks and licensed public telecommunications networks
First Claim
Patent Images
1. A method comprising:
- receiving through a private telephony switch a request from a mobile station to handover an active call, the active call being controlled by the private telephony switch;
establishing a wireless channel between the private telephony switch and the mobile station through a base station of a wireless licensed telecommunications system; and
transferring the active call to the established wireless channel.
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Abstract
Seamless transitions between an enterprise telephony system and a licensed public telecommunications system are described. In one embodiment, the invention includes receiving through a private telephony switch a request from a mobile station to handover an active call, the active call being between the private telephony switch and the mobile station, establishing a wireless channel between the private telephony switch and the mobile station through a base station of a wireless licensed telecommunications system, and transferring the active call to the established wireless channel
163 Citations
41 Claims
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1. A method comprising:
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receiving through a private telephony switch a request from a mobile station to handover an active call, the active call being controlled by the private telephony switch;
establishing a wireless channel between the private telephony switch and the mobile station through a base station of a wireless licensed telecommunications system; and
transferring the active call to the established wireless channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus comprising:
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a first interface to a private telephony switch to receive a request from a mobile station to handover an active call, the active call being controlled by the private telephony switch;
a second interface to a wireless licensed telecommunications system to establish a wireless channel between the private telephony switch and the mobile station through a base station of the wireless licensed telecommunications system; and
a controller to transfer the active call to the established wireless channel. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method comprising:
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sending from a mobile station through an unlicensed wireless network a request to handover an active call, the active call being through the unlicensed wireless network;
receiving a handover command through the unlicensed wireless network to handover the active call from the unlicensed wireless network to an established wireless channel to a base station of a licensed wireless telecommunications system; and
transferring the active call to the established wireless licensed channel. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A mobile station comprising:
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a first radio to carry an active call with an unlicensed wireless network;
a second radio to carry an active call with a licensed wireless telecommunications system; and
a controller to cause the second radio to scan for available channels of the licensed wireless telecommunications system and to cause the first radio to send a handover request to handover an active call on the unlicensed wireless network to the licensed wireless telecommunications system based on the results of the scan. - View Dependent Claims (36, 37, 38, 39, 40, 41)
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Specification