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| Multiplexed synchronous/asynchronous data bus |
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| Adiabatic charging logic circuit |
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| Data processing system and apparatus and display system with image information memory control |
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| Display data write control device |
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| Display control method and apparatus |
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Computer controlled paging and telephone communication system and method
| Details |
Inventors: Fuller, Robert M.; Berg, Richard P.; Kranzler, Daniel R.;
Assignee: Aspect Telecommunications Corporation (San Jose, CA)
Primary Examiner: Hoosain; Allan
Assistant Examiner:
Attorney, Agent or Firm: Ladas & Parry
The invention provides a method and an apparatus for placing a caller into telecommunication with a subscriber. A call from the caller, directed to the subscriber, is detected and, in response thereto, a page is initiated to the subscriber and at the same time a forward leg call is initiated to a stored telephone address. If the call on the forward leg is answered, the party answering that call is placed in telecommunication with the caller. A call from the subscriber is also detected the subscriber is placed in telecommunication with the caller together with any party on a forward leg call. |
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DETAILED DESCRIPTION Overview FIG.
1 illustrates, in block diagram form, a Telephone Control System that may be used to enhance the accessibility of it's subscribers to callers.
As is shown, the Telephone Control System 40 connects with the PSTN 50 via facilities 51.
The Telephone Control System 40 may control a switch 54, causing it to connect incoming and outgoing telephone circuit, e.
g.
, trunks or lines 51.
In an alternate embodiment, the switch 54 is actually part of the PSTN 50.
In this embodiment, the facilities 51 must be capable of transmitting switch control signals from the Telephone Control System 50 to the switch 54.
An example of this type of facility is a CENTREX line, which allows the transmission of switch control signals in the form of `hookswitch flashes` and touch tones to initiate call-conferencing, call-transfer, barge-in, speed-dialing, plus all other CENTREX functions controlled by this method.
A variation of the CENTREX facility is a CENTREX two-way DID trunk, which not only has the `hookflash` capability, but also provides the called number in the form of Direct-Inward-Dialing digits.
This is one form of facility 51.
Another variation of the CENTREX facility provides the called number via a separate data-link known as Simplified Message Desk Interface (SMDI).
Other facility type are ISDN primary rate or ISDN basic rate interfaces which provide all of these capabilities plus many other in addition to two voice compatible channels and a packet channel.
In the preferred embodiment, the switch 54 is part of the Telephone Control System 40.
In this embodiment, the facilities 51 need only include standard DID trunks for the incoming calls, and standard outgoing trunks.
The control system 40 controls switch 54 directly, causing it to connect paths between various incoming and outgoing trunks as required.
Again referring to FIG.
1, the Telephone Control System 40 may also connect to the PSTN 50 via standard phone lines 52, for purposes of communicating with the Paging System 60
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Processing Data 
