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As the use of computer techniques has steadily grown, related telephonic
communication techniques also have expanded. In that regard, telephone
systems have been developed for effectively transmitting digital data in
forms commonly utilized by computer apparatus. At a more personal level,
the traditional push buttons of telephone instruments have been utilized
to provide digital signals at a remote location for both data and control
functions. Consequently, various operations have been performed.
In the typical operation of a telephone instrument as a digital input
device, voice messages prompt callers to provide data and control signals
by actuating the alphanumeric buttons of a conventional telephone.
Detailed forms of such systems have been proposed in association with
computers to provide various services, and one such system is disclosed in
U.S. Pat. No. 4,792,968 issued Dec. 20, 1989, to Ronald A. Katz from a
U.S. patent application Ser. No. 07/018,244 filed Feb. 24, 1987.
Although traditional systems for interfacing an individual person at a
telephone terminal with a computer or data processor have been effective,
such systems have been somewhat limited in application. In general, the
present invention is based on recognizing the need in such systems to
accommodate voice signals as to provide recorded audio data, as for
subsequent use. Accordingly, the system of the present invention
accommodates a caller to identify digital control signals, digital data
signals and audio signals, all in an organized format as to accomplish a
record for subsequent processing or use.
To consider a specific example, systems have been proposed in the past for
interfacing individual telephone terminals with computers, as for sales
applications. Individual callers might dial to accomplish a computer
interface, then provide ordering data by actuating the telephone terminal
buttons to specify goods or services. One such system is disclosed in a
co-pending related patent application entitled "Telephone Interface
Statistical Analysis System", filed May 16, 1988, and bearing a U.S.
patent Ser. No. 07/194,258 (now U.S. Pat. No. 4,845,739) and a related
prior application, now U.S. Pat. No. 4,792,968. In the use of such
systems, the need is recognized for improved capability regarding audio
data.
In general, the present invention comprises a telephone computer interface
system accommodating digital and vocal telephonic communication, the
system being expanded to accommodate and flag audio data distinct from
digital data. In using the disclosed system, either outbound or inbound
calling operations attain an interface with a central data processing
system. Depending on the course of communication during the interface,
various states are implemented for the central system to receive and
identify: digital control signals, digital data signals and audio or voice
signals. Somewhat conventional operation may involve automated vocal
communications to cue the caller and keypad digital communications from
the caller. Generally, data received from the caller is set in memory for
subsequent use or processing. The data may be addressed as to cue a remote
terminal or to isolate a set or subset. Callers may be qualified by
automatic number identification (ANI) signals checked against an assigned
consumable key number. Thus, the system accommodates flexible control and
data accumulation (including cued audio) to accommodate any of various
specific interface applications or formats.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings, which constitute a part of this specification, an
exemplary embodiment exhibiting various objectives and features hereof is
set forth. Specifically:
FIG. 1 is a block diagram of a system constructed in accordance with the
present invention;
FIG. 2 is a block and schematic diagram of a component in the system of
FIG. 1; and
FIG. 3 is a flow diagram illustrating the operating process of the
structure represented in FIG. 2.
DESCRIPTION OF THE ILLUSTRATIVE EMBODIMENT
As required, a detailed illustrative embodiment of the present invention is
disclosed herein. However, physical communication systems, data formats
and operating structures in accordance with the present invention may be
embodied in a wide variety of forms, some of which may be quite different
from those of the disclosed embodiment. Consequently, the specific
structural and functional details disclosed herein are merely
representative; yet in that regard, they are deemed to afford the best
embodiment for purposes of disclosure and to provide a basis for the
claims herein which define the scope of the present invention.
Referring initially to FIG. 1, a series of remote terminals T1-Tn
(telephone instruments) are represented (left). The terminals T1-Tn may be
similar and accordingly only the terminal T1 is shown in any detail. The
indicated terminals T1-Tn represent the multitude of telephone terminals
existing in association with a communication facility CO which may
comprise a comprehensive public telephone network.
The communication facility CO, accommodating the individual terminals
T1-Tn, is coupled to a central processing station CS generally indicated
by a dashed-line block. Within the station CS as illustrated, processors
are provided to interface the terminals T1-Tn so as to accomplish a
desired operating format, and accordingly accumulate data relating to
individual callers.
Calls to and from the terminals T1-Tn are individually processed in
accordance with a specific format to accomplish a data cell or packet. For
example, the objective of a call may be to order an item of merchandise to
implement a mail-order operation. Similarly, a service may be specified
and ordered. Accordingly, the interface accomplishes data as a cell for
processing the order. In other exemplary formats, the system may function
for public polls, lotteries, auctions, promotions and games.
At any instant of time, the collective interface involving the
communication system CO and the processing station CS may involve several
thousand calls. Accordingly, the station CS may take the form of a
sizeable computer or mainframe capable of simultaneously controlling
smaller units or directly operating to process many calls involving
individual interfaces. Although numerous possible configurations are
available, for purposes of explanation, the central station CS of the
disclosed embodiment includes a control unit functioning with a plurality
of audio response units and associated individual processors and attended
terminals.
Essentially, the system of the present invention accumulates data from the
remote terminals T1-Tn in cells, which data may include audio data and
digital data (numerical) flagged or otherwise distinguished for subsequent
expedient processing. Accordingly, the system enables a person at a
terminal (T1-Tn) to provide data in both audio and digital forms. For
audio transmissions, the person utilizes the telephone handpiece
(microphone) while for digital communications, the person utilizes the
telephone push buttons (keypad).
Considering the exemplary telephone terminal T1 of FIG. 1 in greater
detail, a handpiece 10 (microphone and earphone) is shown along with a
panel 12 provided with a rectangular array of individual push buttons 14
in a conventional configuration. Of course, the handpiece 10 accommodates
analog signals while the panel 12 is a digital apparatus. As disclosed in
detail below, a person is informed or cued through the handpiece 10
(earphone) to provide data in accordance with a specific format. In
accordance herewith, the person may provide signals utilizing either the
buttons 14 or the handpiece 10 (microphone).
In conventional telephone structures, alphabetic and numeric designations
are provided on the buttons 14. For example, several of the buttons 14
carry three letters along with a decimal digit. Specifically, the button
designated with the numeral "2" also carries the letters "A", "B" and "C".
Thus, the buttons 14 encompass: the numerals "0-9", the symbols "*" and
"#" and the alphabet except for the letters "Q" and "Z".
At this stage, some specific aspects of the communication interface are
noteworthy. Essentially, by telephonic dialing, the communication facility
CO is coupled selectively to certain of the terminals T1-Tn through audio
response units AR1-ARn. For example, as a result of dialing a specific
telephone number at one of the remote terminal units T1-Tn, the
communication facility CO couples the actuated terminal through one line
of several sets of lines LS1-LSn to one of the audio response units
AR1-ARn. Note that automatic call distributors may be utilized as well
known in the art. From the audio response units AR1-ARn, incoming lines 20
are received through a coupler 22 for communication with individual
interface format processors IP1-IPn. Note that the interface processors
IP1-IPn are illustrated as separate and distinct units; however, as
mentioned above, it is to be recognized that various structural processing
combinations may be used, based on time sharing, parallel processing,
compiler techniques, bus technologies and other well known computer
techniques to accomplish the objective processing as explained in detail
below. In some instances, certain of the structure and functions of the
processors IP1-IPn can be variously incorporated in the units AR1-ARn. Of
course, specific arrangements and configurations will likely be
implemented based on available hardware and software development.
The coupler 22 is also connected to a master control and memory unit 24
which is associatively coupled to a look-up table 25, a consumable key
limit unit 27, a subset counter 29 and through a crossbar 26 to each of
the processors IP1-IPn. Note that both the function and structure of
crossbars for selectively interconnecting multiple parallel structures are
well known in the computer arts. For a detailed description of crossbars,
see the book, "High-Performance Computer Architecture" by Harold S. Stone,
published by Addison-Wesley Publishing Company, 1987.
The coupler 22 essentially functions as a switch as well known in the prior
art to establish line couplings from one line of an audio response unit
(AR1-ARn) to one of the interface processors IP1-IPn. The operation of the
coupler 22 is implemented in association with the control unit 24 which
may be programmed to execute control and memory functions as detailed
below. Again, the division of functions between the unit 24, the units
AR1-ARn and the processors IP1-IPn may vary considerably depending on
available structures and techniques. The disclosed system is merely
exemplary in that regard.
Generally, in a sales format, the interface processors IP1-IPn receive
basic record data from the unit 24 and order data from the terminals
T1-Tn. In a multiple format configuration, program data may be stored in
the processors IP1-IPn or supplied from the unit 24. In any event, in
accordance with a program or format, a packet of data is collected in a
processor IP1-IPn during an interface. After being organized in a cell and
flagged, the data packet is returned from an interface processor IP1-IPn
to the unit 24 for subsequent use or processing. For outbound operation,
the unit 24 functions as an automatic dialer to attain desired connections
through the units AR1-ARn in accordance with stored telephone numbers.
Again, considering a sales format, typically individual data cells or
packets of data are organized and returned to the unit 24 for processing
which ultimately involves performing a service or instructions for
shipping merchandise and billing. In some formats, during the course of
interfaces with certain callers, the need may arise for person-to-person
oral communication. In accordance herewith, to accommodate that need, the
interface processors IP1-IPn may be individually associated through a
coupler 30 with an attended terminal AT1-ATn. For processing operations as
mentioned above, the terminals AT1-ATn may be connected through a coupling
unit 31 to an off-line processor 33, also connected to the control and
memory unit 24.
Recapitulating to some extent, the general operation of the system of FIG.
1 involves the development and maintenance of individual data packets or
cells drawn from the unit 24 to the individual processors IP1-IPn during
interface communications with individual remote terminals T1-Tn. In the
exemplary format as treated below, each data cell manifests a merchandise
order identifying specific goods, a specific customer, a shipping
destination and other related data. In accordance herewith, data in
individual cells may include flagged audio data. In any event, the
operation of the system involves the organized accumulation of mail-order
data (some of which may be audio) in the unit 24 addressable for
subsequent use by the processor 33, as to implement billing and delivery
of services or merchandise.
As explained in detail below, the data cells (manifesting individual
orders) are developed in the individual processors IP1-IPn. Structural
details of an exemplary processor are shown in FIG. 2 and will now be
considered. A cell register 34 (FIG. 2, center) is divided into fields to
illustrate an exemplary data format. Specifically, the cell register 34
defines several separate fields for data components manifesting an
exemplary order. Record data for some of the fields may reside in the
master control and memory unit 24 (FIG. 1) before the occurrence of any
telephone interface. However, other fields are loaded or modified during
the period of the interface with a caller at one of the remote terminals
T1-Tn providing elements of the data.
Generally, variously accumulated record data is initially loaded into the
cell register 34 from the control and memory unit 24 (FIG. 1) through a
bus 36 (FIG. 2, right center) that is connected through the crossbar 26
(FIG. 1) to the unit 24. The same bus 36 accommodates movement of a
completed or modified data cell to memory (in the unit 24).
As suggested above, some fields in the cell register 34, as those
pertaining to a specific merchandise order, are always loaded by data
resulting from the interface and received through a two-way line 38 (FIG.
2, upper left). That is, a caller is steered through the interface
interval, being prompted or cued to provide responses selectively in the
form of: (1) digital control signals, (2) digital data signals or (3)
audio signals. Also, in certain applications digital ANI telephone signals
may be received through the line 38 indicating the telephone dialing
number of the caller. Specifically, ANI (automatic number identification)
signals may be provided from the communication facility CO (FIG. 1)
automatically indicating the telephone number for the calling terminal
T1-Tn. The ANI signals may be treated either as control or data signals on
being received through an audio response unit (AR1-ARn, FIG. 1), the
coupler 22 and the line 38 (FIG. 2).
Generally, control signals in the line 38 are utilized for the controlled
registration of digital data signals and audio signals as appropriate to
each specific interface. Of course, the data and audio signals also are
received through the line 38.
For convenience of illustration and explanation, the line 38, connected to
the coupler 22 (FIG. 1) is shown to include two separate communication
paths, specifically an outgoing path 40 (FIG. 2) and an incoming path 42.
Of course in practice, the two paths would comprise a common two-way or
bidirectional line. For outbound calls, the master control and memory unit
24 (FIG. 1) supplies dialing signals through the coupler 22 and a unit
(AR1-ARn) to the facility CO. As indicated above, an automatic dialer
structure is incorporated as well known in the art. On completion of a
connection to a terminal T1-Tn, the unit 24 actuates a processor IP1-IPn
through the crossbar 26. Thus, an addressed data packet is used to advise,
inform or cue a person at a connected remote terminal (T1-Tn). In some
cases, for example inbound calls, an audio response unit AR1-ARn may
perform some preliminary operations, after which calls are referred to a
processor IP1-IPn through the coupler. Usually, coupling a remote terminal
T1-Tn to a processor IP1-IPn initiates an interface format.
During an interface operation, as with the processor IP1 for example, the
connection through the coupler 22 and the audio response unit AR1-ARn
remains active. For example, the outgoing communication path 40 (FIG. 2)
is provided with voice signals from a voice generator 44 that is in turn
controlled by a processor controller 46. Generally, the controller 46 may
possess some substantial computing capability along with storage.
Accordingly, it responds to an operating program as disclosed in detail
below to accomplish an interface format.
The outgoing communication path 40 of the line 38 also is connected to one
of the attended terminals AT1-ATn. The signal route in FIG. 2 is to the
path 40 either from a line 48 or the voice generator 44. With respect to
the incoming path 42, signals are provided through a multiplexer 52 to
provide various lines L0, L1, L2 or L3 exclusively active. The line L3 or
line 50 is coupled to an attended terminal AT1-ATn (FIG. 1). As indicated
above and explained in detail below, under various circumstances, signals
from persons at terminals are variously transferred, including transfer to
an attended terminal (AT1-ATn, FIG. 1). Thus, the status of an interface
may vary, one status or state designating an interconnection of one of the
remote terminals T1-Tn with an attended terminal, that is, one of the
terminals AT1-ATn.
The status of an interface with a caller is indicated by a status register
56 (FIG. 2, upper right) which is controlled by the process controller 46
and in turn controls the multiplexer 52. The status register 56 basically
comprises a two-bit counter capable of indicating four states to control
the lines L0-L3 from the multiplexer 52, as indicated below.
______________________________________
Active
State Operation Multiplexer Line
______________________________________
"0" Cue data signals (digital)
L0
"1" Cue control signals (digital)
L1
"2" Cue audio signals L2
"3" Actuate live interface
L3
______________________________________
The states "0", "1" and "2" indicate operations to prompt persons to
provide signals digitally. Alternatively, any of the states may be used
merely to inform a person where no response is to be received. As
indicated above, in the state "3", the caller speaks directly with an
operator to provide information in an audio form. The other states
accommodate computer interface signals. Implementing the different states,
the multiplexer 52 (controlled by the status register 56) selectively
activates one of the four lines L0, L1, L2 or L3 to receive a specific
class of signals from the path 42.
Generally, the control signals received in the line L1 are applied to
actuate the controller 46. The data or information signals received in the
lines L0 and L2 are provided to the cell register 34 through a gating
network 62 (lower left). Several connections are involved. The line L3 is
coupled to an attended terminal (AT1-ATn, FIG. 1) through a line 50.
The line L0 (digital data) is connected to the controller 46 and to a
movable contact 64 of the gating network 62. The line L1 is connected only
to the controller 46. The line L2 (audio) is connected through an audio
processor 60 to the controller 46 and to the movable contact 64.
The gating network 62 is illustrated in an electromechanical form for ease
of explanation with the movable contact 64 displaceable to engage each of
the stationary contacts C1-C11 in sequence. However, in an actual
embodiment, a well known analogous solid-state configuration would be
employed.
In accordance with the symbolic representation of the gating network 62,
the movable contact 64 is driven by a gate control 66 to sequentially
encounter stationary contacts C1-C11 which are coupled to fields of the
register 34. A mechanical drive connection is indicated by a dashed line
67, the gate control 66 being actuated by the process controller 46 as
described in detail below. Somewhat more specifically, the operations
directed by the controller 46 are illustrated in FIG. 3 and will now be
considered in detail.
The flow diagram of FIG. 3 implements an exemplary mail-order format for a
sales organization with existing "local" customers of record (identified
by telephone number, credit card number, etc.) acceptable for credit
transactions. To pursue an example, customers are provided with a
"special" catalog from which a single order may be placed for each
telephone terminal. Thus, customers are assigned a consumable key of "one"
to accordingly limit ordering.
Calls from customers are coupled through an audio response unit, e.g. unit
AR1 (FIG. 1) and the coupler 22 to the master control unit 24. In one
format, the customer is recognized by a telephone number manifest by
automatic number identification (ANI) signals. Customer data is fetched to
the consumable key limit unit 27 based on the calling telephone number.
The call is then tested to proceed conditionally on the key not being
previously used or consumed. The test is illustrated by a block 77 (FIG.
3) and is executed by the unit 27 with reference to a field 81 of the data
packet as shown in the register 34 (FIG. 2). If there has been a previous
call, the instant call is terminated as indicated. Otherwise, the data
cell is fetched from the unit 24 to a cell register, e.g. register 34
(FIG. 2). The operation is indicated by the block 79 (FIG. 3). Thus, calls
to a specific format number are limited to "one". Of course, consumable
keys may be set to accomplish any desired limitation with respect to a
specific format. Format interface operation follows approval of a call.
At the beginning of an interface operation, the processor involved, e.g.
processor IP1 (FIG. 2) is set to state "0" as indicated by the block 80
(FIG. 3). That state, also indicated by the status register 56 (FIG. 2)
controls the processor 46 so that a caller is cued for digital data
signals to be formed by use of the buttons 14 at the caller's remote
terminal. Specifically, the caller might be cued: "Please indicate your
first item by keying in the three-digit catalog number." The audio is
reproduced at the terminal.
As will be described in detail below, identification for an item is stored
in a field 82 (FIG. 2) of the cell register 34. Similarly, color, size and
code data for selected items are cued and stored in a field 84. Of course,
other items may be ordered with the consequence that they are recorded in
further of the fields 82 and 84 of the cell register 34. The operation
also is represented by the block 86 in FIG. 3 and might be cued: "Please
indicate your next item or push button `3` to indicate you are finished."
At the conclusion of the item ordering, the system sets state "1" (cue
control) in the status register 56 (FIG. 2) as indicated by block 88 (FIG.
3). Note that the state "1" also may be attained by a period of silence
from the caller. In any event, the subsequent operation involves a
junction, as indicated by the block 90, a determination to be made by
whether or not the caller is a customer of record, e.g. "local account?"
As an example, the caller might be cued: "If you have a local account,
please push button `1`; if not, please push button `2`." The resulting
digital control signals set the course for subsequent operations as
implemented by the controller 46. Of course, the indication may be
confirmed or originated from the data packet.
If a caller has a local account, for example, implying that the caller's
address is in the data packet, the system status is reset to state "0"
(cue data) as indicated by block 92. In that event, the system resumes the
accumulation of non-vocal digital data by cueing for the card number as
indicated by the block 94. Note that with the indication of a local
account, a designating code (customer I.D. number) is set in the field 98
of the cell register. Concurrently, the expiration date for the customer's
account or card is stored in the field 150. These operations are indicated
by the block 100 (FIG. 3).
Pursuing the example, the system is again set in state "1" to cue for
control signals as indicated by the block 104 (FIG. 3). Specifically, as
indicated by a junction block 104, a search is made for the customer's
identification number. If the number is found, another control signal is
cued. Specifically, as indicated by the block 106, the customer's address
is verified. If the proper address is confirmed to be registered for the
customer, the record is completed as indicated by the block 108. This
operation, performed by the unit 46, may involve inventory verification or
other internal operations as described in detail below.
Next, the system operation progresses to an internal decision block 110 to
test whether or not audio data has been received. Essentially, the audio
test simply queries whether or not the status register 56 has been set to
manifest the existence of the states "2" or "3" to enter audio data.
Control in that regard is by the controller 46 (FIG. 2).
In the example as treated to this point, neither states "2" nor "3" has
occurred. However, depending on the determination, a field 112 (FIG. 2) of
the cell register 34 is set with one of the two possibilities. If audio
data had been entered, the block 114 would indicate a class designation of
binary "1" in the field 112. Conversely, a class representative "0" is
entered in the field 112 for orders involving no audio data. The operation
next proceeds to record the loaded cell in memory as indicated by the
block 116.
The operation as outlined to this point has covered routine orders, i.e.
customers with local accounts placing orders that can be processed
entirely on the basis of digital control signals and digital data signals
(no audio) entered digitally as outlined above. The accommodation of other
orders involving audio communication will now be considered.
Generally, audio operations involve either the introduction of a
person-to-person interface, as for example for a new customer, or audio
signal interface, as for example to record a new address for an existing
customer. During any format operation, these operations may be actuated
variously in combination with digital data control and recording. Such
operations may involve proceeding through a block 118 (FIG. 3, upper
left); however, other possibilities exist. One such possibility occurs
when a caller indicates that his record address is not correct.
Specifically in that regard, the junction block 106 (FIG. 3, right center)
queries "verify address?" The cue or prompt might take the form:
"According to our records, you are Mr. John Henry with a billing and
shipping address of 10 Beverly, Los Angeles, Calif." A "no" response
results in another test as indicated by the block 120 questioning whether
or not the present situation is merely a case of an altered address. If
so, the system proceeds from a "yes" determination of the block 120 to
obtain an audio record of the new address. As indicated by the block 122,
state "2" is set and the caller is cued to state his new address as
indicated by the block 124. The address is processed by the audio
processor 60 (FIG. 2) and stored as audio data as indicated by the block
126 (FIG. 3). The operation then proceeds on the basis of a complete
record as indicated by the block 108. Note that in this instance audio
data is registered in the cell 34 (FIG. 2) specifically in voice fields
126 with the status register 56 (FIG. 2, upper left) indicating state "2".
Consequently, the junction block 110 (FIG. 3, lower right) indicates the
presence of audio data with the result that the cell register 34 stores a
class "1" bit to indicate the order data includes audio data.
Returning to the block 118 (FIG. 3, upper left) the operation for the case
of a complex address change involves setting the operating state "3", i.e.
actuating a live interface. Other patterns also may lead to that operating
sequence. For example, as suggested above, patterns for a line operator
interface may include a non-local account or failure to locate account
data. Also, throughout the interval of an interface, a caller may prompt a
direct personal contact simply by depressing the telephone button
designated "*". Accordingly, as indicated in FIG. 3 at block 118, the
occurrence of an asterisk signal (*) sets state "3" with operation
proceeding from block 118 to activate a live interface as indicated by the
block 128. The controller also may initiate state "3" as when meaningless
data is received.
It is noteworthy that in an operating system, at any specific time, the
demand for operators may exceed the number of operators. In that event,
callers who cannot be accommodated are cued to punch in their telephone
numbers and/or other data, and/or record via audio or numeric signals such
data as to return calls when operators are available. The logic of such an
operation is embodied in the block 128, "actuate live interface".
When a live interface is actuated involuntarily for a caller in accordance
with the system as described, an incentive is offered to keep the caller
on the line. Specifically, the operation involves the step represented by
the block 118 (FIG. 3) "set state `3`" and the counter 29 (FIG. 1, upper
right). The master control unit 24 might actuate the unit AR1 to produce
an audio message at the terminal T1 as follows: "You are being transferred
to a live operator. Please stay on the line as you may win a valuable
prize." Immediately, the unit 24 increments the counter 29. If a specified
count is attained, e.g. "1000", the caller is awarded a premium.
In the example, if the caller is the thousandth to be transferred, the unit
24 actuates the unit AR1 to produce an announcement: "You have won a $100
credit for your next order. Please stand by."
If the caller is not the one-thousandth to be transferred, as the transfer
is made, the caller is informed: "Sorry, no winner, but here is our
operator." Essentially, transferred calls are a subset of callers,
involuntarily transferred calls are a sub-subset and winners are still
another subset.
Once an operator contact has been established several possibilities exist.
One possibility is that the operator completes the contents of the cell
register 34 (FIG. 2) without audio data. Essentially, an operator, active
at one of the attended terminals, e.g. terminal AT1 (FIG. 1) has direct
control of the cell register 34 (through the controller 46, FIG. 2) along
with a data display and may be able to enter digital data manifesting the
order. That possibility is indicated by the junction block 130 (FIG. 2),
"digital data complete?"
If the data can be completed without audio record signals, the system
operation proceeds to the block 108 (record complete). If the order record
is not completed void of audio data, operation proceeds in state "3".
Again, under control of a live operator, the system may follow different
paths to produce an ultimate determination of whether or not the audio
data provides a complete order as indicated by the decision block 134. In
that regard, an operator may perfect an order record on the basis of a
bank credit card or a new customer accommodation. In any event, if an
order is not completed, the operation simply terminates as indicated by
the block 136. Conversely, a completed order returns operation to block
108 indicating the record is complete.
Exemplary operating patterns of interfaces are treated in detail below;
however, after addressing individual caller data, the disclosed embodiment
reproduces audio messages at the connected remote terminal. As the
interface proceeds, the system cues a | | |
