Telephone call transfer between a wireless and wired telephone
First Claim
1. A telecommunication arrangement that supports the transfer of an in-progress telephone call between a wireless telephone and a wired telephone comprising:
- first and second communication channels connected to a telecommunication switch and a wired telephone, respectively;
third communication channel coupled to a radio frequency base station that supports at least one wireless communication channel to a wireless telephone;
interface circuit means coupled to said first, second, and third channels for coupling said first channel among said second and third channels, said interface circuit means including;
first means for connecting said first channel to one of said second and third channels thereby establishing a first call connection between the telecommunication switch and one of the wired and wireless telephones;
second means for connecting said first channel to the other of said second and third channels thereby establishing a second call connection between the telecommunication switch and the other of the wired and wireless telephones without causing the telecommunication switch to release said first call connection, said second means establishing said second call connection while maintaining said first call connection so that said wired and wireless telephones are simultaneously connected via said first communication channel as a three-way call to said telecommunication switch.
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Accused Products
Abstract
A wireless network controller supports telephone call between a wireless telephone and a wired telephone. First and second wired communication channels are connected to a telecommunication switch and the wired telephone, respectively. A third wired communication channel is coupled to a radio frequency base station that supports a plurality of concurrent wireless communication channels to wireless telephones. An interface circuit coupled to the first, second, and third channels switches the connection of the first channel associated with the telecommunication switch between the second and third channels, and hence between the wired and wireless telephones. Simultaneous connection to both the wireless and wired telephones is also supported. A conventional line terminating impedance is always presented to the switch regardless of whether one or both of the wireless and wired telephones are off-hook.
200 Citations
20 Claims
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1. A telecommunication arrangement that supports the transfer of an in-progress telephone call between a wireless telephone and a wired telephone comprising:
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first and second communication channels connected to a telecommunication switch and a wired telephone, respectively; third communication channel coupled to a radio frequency base station that supports at least one wireless communication channel to a wireless telephone; interface circuit means coupled to said first, second, and third channels for coupling said first channel among said second and third channels, said interface circuit means including; first means for connecting said first channel to one of said second and third channels thereby establishing a first call connection between the telecommunication switch and one of the wired and wireless telephones; second means for connecting said first channel to the other of said second and third channels thereby establishing a second call connection between the telecommunication switch and the other of the wired and wireless telephones without causing the telecommunication switch to release said first call connection, said second means establishing said second call connection while maintaining said first call connection so that said wired and wireless telephones are simultaneously connected via said first communication channel as a three-way call to said telecommunication switch. - View Dependent Claims (2, 3, 4, 5, 11, 12, 13, 14)
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6. In a telecommunication apparatus connected by first, second, and third communication channels to, respectively, a telecommunication switch, a wired telephone, and a radio frequency base station that supports a wireless telephone, a method for transferring an in-progress telephone call between the wired telephone and wireless telephone without requiring additional action by the switch, the method comprising the steps of:
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connecting said first channel to one of said second and third channels thereby establishing a first call connection between the telecommunication switch and one of the wired and wireless telephones; connecting said first channel to the other of said second and third channels thereby establishing a second call connection between the telecommunication switch and the other of the wired and wireless telephones without causing the telecommunication switch to release said first call connection, such that said first and second call connections are simultaneously supported via said first communication channel, as a three-way call. - View Dependent Claims (7, 8, 9, 10)
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15. A telecommunication arrangement that supports the transfer of calls among wireless and wired telephones comprising:
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wireless network controller coupled to a radio frequency base station that can simultaneously support a plurality of calls to wireless telephones; first communication channel connecting said wireless network controller to a telecommunications switch; second communication channel connecting said wireless network controller to a wired telephone; third communication channel coupling said wireless network controller to a wireless telephone; said wireless network controller including interface circuit means coupled to said first, second, and third channels for coupling said first channel among said second and third channels, and hence among said wired and wireless telephones, respectively, said interface means including; means for detecting an off hook condition of each of said wireless and wired telephones coupled to said second and third channels, respectively; first means, responsive to said detecting means detecting an off hook condition of one of said wired and wireless telephones, for connecting said first channel to a corresponding one of said second and third channels thereby establishing a first call connection between the telecommunications switch and the one telephone; second means, responsive to said detecting means detecting an off hook condition of the other of said wired and wireless telephones, for connecting said first channel to the corresponding other of said second and third channels without causing the telecommunication switch to release said first call connection, thereby establishing a second call connection between the telecommunication switch and the other telephone. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification