Wireless access unit with trunk interface
First Claim
1. An apparatus comprising:
- a wireless access communication unit to couple a central telephone switch to a wireless cellular communications network using a wireless trunk; and
a trunk interface unit to couple the wireless access communication unit to the central telephone switch, wherein the wireless access communications unit routes calls from user stations coupled to the central telephone switch to the wireless cellular communications network in response to a command received from the central telephone switch.
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Accused Products
Abstract
A communication system having a wireless trunk for connecting multiple phone lines over wireless communication links to a cellular network comprises a central telephone switch, such as a private branch exchange or key system, connected through one or more trunk lines to a wireless access communication unit. The wireless access communication unit preferably comprises a separate subscriber interface for each trunk line from the central telephone switch. The wireless access communication unit collects data from each of the subscriber interfaces, formats the data into a format compatible with an over-the-air protocol, and transmits the information over one or more wireless channels to a cellular base station. The wireless access communication unit thereby connects calls received from the central telephone switch'"'"'s trunk lines over a wireless trunk to a network.
123 Citations
26 Claims
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1. An apparatus comprising:
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a wireless access communication unit to couple a central telephone switch to a wireless cellular communications network using a wireless trunk; and
a trunk interface unit to couple the wireless access communication unit to the central telephone switch, wherein the wireless access communications unit routes calls from user stations coupled to the central telephone switch to the wireless cellular communications network in response to a command received from the central telephone switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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receiving a command from a central telephone switch at a wireless access communication unit, the switch being coupled to user stations;
routing calls from user stations coupled to the switch alternately to a wireless cellular communications network using a wireless trunk or to a wired switched telephone network in response to the received command. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A machine-readable medium having stored thereon data representing instructions which, when executed by a machine, cause the machine to perform operations comprising comprising:
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receiving a command from a central telephone switch at a wireless access communication unit, the switch being coupled to user stations;
routing calls from user stations coupled to the switch alternately to a wireless cellular communications network using a wireless trunk or to a wired switched telephone network in response to the received command. - View Dependent Claims (20, 21, 22)
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23. An apparatus comprising:
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a central telephone switch coupled to a plurality of user stations;
a wireless access communication unit to couple the central telephone switch to a wireless cellular telephone network using a wireless trunk; and
a trunk interface unit to couple the central telephone switch to a wired switched telephone network using a wired trunk and to couple the central telephone switch to the wireless access communication unit using a wired trunk, wherein the central telephone switch routes calls from user stations alternately to the wired switched telephone network or the wireless access communication unit through the trunk interface. - View Dependent Claims (24, 25, 26)
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Specification