PBX Intercept and caller interactive attendant bypass system

• US 4,696,028 A
• Filed: 03/26/1984
• Issued: 09/22/1987
• Est. Priority Date: 03/26/1984
• Status: Expired due to Term

• Current Assignee: Aspect Telecommunications Corporation (Alvaria Incorporated)
• Original Assignee: Dytel Corp. (Enghouse Systems Limited)
• Inventors: Morganstein, Sanford J., Tuck, Edward F., Mehta, Bakulesh A., Krakau, Herbert B.
• Primary Examiner(s): Brown, Thomas W.
• Application Number:
  US06/593,526
• Time in Patent Office: 1,275 Days
• Field of Search: 179/18 BE, 179/18 B, 179/27 FG, 179/27 FH, 179/27 D, 179/6.17, 179/84 C, 179/2 A, 179/5 P, 179/18 BD, 379/88, 379/89, 379/67, 379/84, 379/213, 379/214, 379/212, 379/204, 379/205, 379/202, 379/233
• US Class Current: 379/88.24
• CPC Class Codes: H04M 3/527 Centralised call answering arrangements not requiring operator intervention
• CPC Class Codes: H04Q 3/625 Arrangements in the private branch exchange

Abstract

Disclosed is an intercept system for integrating the personalized services of switchboard attendants associated with on-premises PBX switching systems with the capabilities of the intercept system for allowing calling parties the opportunity to complete their own calls to the on-premises switching systems when the telephone extension numbers of the called parties are known to the calling parties. Depending on the mode of system operation selected, the intercept system either presents all incoming calls directly to the switchboard attendants, or intercepts all incoming calls and presents the caller the opportunity to complete the call, or a combination in which incoming calls are first offered to the switchboard attendants for assistance and then after a time wherein attendant assistance is not gained, the call is intercepted and the caller is given an opportunity to complete the call. When a call is intercepted a bidirectional communication path is established between the caller and the intercept system, wherein a digital announcement circuit transmits an instructional message to the caller soliciting the dialing of the desired on-premises switching system telephone extension number, and a DTMF receiver collects the dialed extension number digits. The digits are then outpulsed to the on-premises switching system and the call to the desired party is completed without the intervention of a switchboard attendant.

Claims

1. A call processor for use in conjunction with a telephone switching system having provisions for a call completion assistant, for processing concurrent incoming calls directed to the switching system and allowing calling parties to choose whether to complete the calls directly to destinations associated with the switching system, or by the call completion assistant, comprising:

detector means for detecting requests for service from the respective calling parties initiating calls to the telephone switching system;

means responsive to the detection of the requests for service by said detector means for causing respective connection paths to be established to the calling parties;

message announcement means for generating a message for transmission to the calling parties on said respective connection paths while the parties are placing concurrent calls;

means responsive to said detector means detecting said requests for service for transmitting said message to the calling parties;

means adapted for receiving a plurality of numbers input by the calling parties while said message is being transmitted to the calling parties;

means responsive to a first type of response from the calling parties for receiving and for transferring respective destination determining information to the switching system, and responsive to a second type of response from the calling parties for transferring respective destination determining information associated with the call completion assistant to the switching system such that calls by the calling parties can be completed according to the respective said first or second types of responses, at the calling parties'"'"' options; and

means for transmitting to the switching system predetermined destination determining information if destination information is not received from any one party of said calling parties within a predetermined period of time.

2. The call processor of claim 1 wherein said means for receiving and for transferring includes receiver means for receiving the respective destination determining information from the calling parties and for storing said information for subsequent transferral to the telephone switching system.

3. The call processor of claim 2 further including means for issuing a request for service associated with each said calling party to the switching system, and means for receiving from said switching system an acknowledgment of a respective request for service from said issuing means, and said means for receiving and for transferring transfers destination determining information to the switching system subsequent to the respective said acknowledgments.

4. The call processor of claim 2 further including means for translating the destination determining information received from the calling parties and for transferring the translated destination determining information to the switching system.

5. The call processor of claim 1 wherein said transmitting means comprises means for transmitting a telephone number associated with a call completion assistant of the switching system.

6. The call processor of claim 1 wherein said message announcement means comprises a memory for storing said message, and further including means for reading said memory to generate said message skewed in time so that calling parties placing substantially concurrent calls can receive the entire same message.

13. The call processor of claim 1 further including means for providing an instructional message to a plurality of calling parties placing concurrent calls, and means adapted for receiving a plurality of numbers input by the calling parties while at the same time transmitting said instructional message.

7. A call processor for use in conjunction with a telephone switching system having provisions for a call completion assistant, for processing concurrent incoming calls directed to the switching system and allowing calling parties to choose whether to complete the calls directly to destinations associated with the switching system, or by the call completion assistant, comprising:

a plurality of extension telephone station lines for connecting said call processor to the telephone switching system;

detector means for detecting requests for service from the respective calling parties initiating calls to the telephone switching system;

means responsive to the detection of the requests for service by said detector means for causing respective connection paths to be established to the calling parties;

message announcement means for generating a message for transmission to the calling parties on said respective connection paths while the parties are placing concurrent calls;

means responsive to said detector means detecting said requests for service for transmitting said message to the calling parties;

means adapted for receiving a plurality of numbers input by the calling parties while said message is being transmitted to the calling parties; and

means responsive to a first type of response from the calling parties for receiving and for transferring respective destination determining information to the switching system, and responsive to a second type of response from the calling parties for transferring respective destination determining information associated with the call completion assistant to the switching system such that calls by the calling parties can be completed according to the respective said first or second types of responses, at the calling parties'"'"' options.

8. A call processor for use in conjunction with a telephone switching system having provisions for a call completion assistant, for processing concurrent incoming calls directed to the switching system and allowing calling parties to choose whether to complete the calls directly to destinations associated with the switching system, or by the call completion assistant, comprising:

detector means for detecting ringing signals indicating requests for service from the respective calling parties initiating calls to the telephone switching system;

means responsive to the detection of the requests for service by said detector means for causing respective connection paths to be established to the calling parties;

message announcement means for generating a message for transmission to the calling parties on said respective connection paths while the parties are placing concurrent calls;

means responsive to said detector means detecting said requests for service for transmitting said message to the calling parties;

means adapted for receiving a plurality of numbers input by the calling parties while said message is being transmitted to the calling parties; and

means responsive to a first type of response from the calling parties for receiving and for transferring respective destination determining information to the switching system, and responsive to a second type of response from the calling parties for transferring respective destination determining information associated with the call completion assistant to the switching system such that calls by the calling parties can be completed according to the respective said first or second types of responses, at the calling parties'"'"' options.

9. A call processor for use in conjunction with a telephone switching system having provisions for a call completion assistant, for processing concurrent incoming calls directed to the switching system and allowing calling parties to choose whether to complete the calls directly to destinations associated with the switching system, or by the call completion assistant, comprising:

detector means for detecting requests for service from the respective calling parties initiating calls to the telephone switching system;

means responsive to the detection of the requests for service by said detector means for causing respective connection paths to be established to the calling parties;

message announcement means for generating a message for transmission to the calling parties on said respective connection paths while the parties are placing concurrent calls;

means responsive to said detector means detecting said requests for service for transmitting said message to the calling parties;

means adapted for receiving a plurality of numbers input by the calling parties while said message is being transmitted to the calling parties;

means responsive to a first type of response from the calling parties for receiving and for transferring respective destination determining information to the switching system, and responsive to a second type of response from the calling parties for selecting at desired times a primary destination associated with the call completion assistant, and for selecting at other times a secondary destination, and for transferring respective destination determining information to said selected primary or secondary destination such that calls by the calling parties can be completed according to the respective said first or second types of responses, at the calling parties'"'"' options.

10. A call processor for use in conjunction with a telephone switching system having provisions for a call completion assistant, for processing concurrent incoming calls directed to the switching system and allowing calling parties to choose whether to complete the calls directly to destinations associated with the switching system, or by the call completion assistant, comprising:

detector means for detecting requests for service from the respective calling parties initiating calls to the telephone switching system;

means responsive to the detection of the requests for service by said detector means for causing respective connection paths to be established to the calling parties;

message announcement means for generating a message for transmission to the calling parties on said respective connection paths while the parties are placing concurrent calls, said message announcement means further including a plurality of instructional message storage circuits for storing different instructional messages;

means for selecting one said instructional message of said plurality based upon a time of day for transmission to the calling parties;

means responsive to said detector means detecting said requests for service for transmitting said messsage to the calling parties;

means adapted for receiving a plurality of numbers input by the calling parties while said message is being transmitted to the calling parties; and

means responsive to a first type of response from the calling parties for receiving and for transferring respective destination determining information to the switching system, and responsive to a second type of response from the calling parties for transferring respective destination determining information associated with the call completion assistant to the switching system such that calls by the calling parties can be completed according to the respective said first or second types of responses, at the calling parties'"'"' options.

11. A call processor for use in conjunction with a telephone switching system having provisions for a call completion assistant, for processing concurrent incoming calls directed to the switching system and allowing calling parties to choose whether to complete the calls directly to destinations associated with the switching system, or by the call completion assistant, comprising:

detector means for detecting requests for service from the respective calling parties initiating calls to the telephone switching system;

means responsive to the detection of the requests for service by said detector means for causing respective connection paths to be established to the calling parties;

message announcement means for generating a message for transmission to the calling parties on said respective connection paths while the parties are placing concurrent calls;

means responsive to said detector means detecting said requests for service for transmitting said message to the calling parties;

means adapted for receiving a plurality of numbers input by the calling parties while said message is being transmitted to the calling parties;

means responsive to a first type of response from the calling parties for receiving and for transferring respective destination determining information to the switching system, and responsive to a second type of response from the calling parties for transferring respective destination determining information associated with the call completion assistant to the switching system such that calls by the calling parties can be completed acording to the respective said first or second types of responses, at the calling parties'"'"' options;

means for receiving and for detecting a disconnect signal from the switching system indicating an on-hook condition of a called party previously connected to an associated calling party; and

means responsive to said detection of the disconnect signal for again outputting an instructional message to the associated calling party to transmit destination determining information associated with a second call;

whereby said call processor receives the destination determining information associated with the second call and transfers the same to the switching system without the associated calling party going on hook.

12. A call processor for use in conjunction with a telephone switching system having provisions for a call completion assistant, for processing an incoming call directed to the switching system and allowing a calling party to choose whether to complete the call directly to a destination through the switching system, or to complete the call through the call completion assistant, comprising:

detector means for detecting a request for service from the calling party initiating the call to the telephone switching system;

means responsive to the detection of a request for service by said detector means for causing a connection path to be established to the calling party;

a message announcement means for generating a message for transmission to the calling party on said connection path;

means responsive to said detector means detecting a request for service for transmitting said message to the calling party;

means for issuing a request for service to the telephone switching system, and means for receiving from the telephone switching system an acknowledgment of the request for service from said issuing means;

means for inhibiting the transmission of the telephone switching system acknowledgment of request to the calling party; and

means responsive to one of (a), a first type of response from the calling party for receiving from the calling party destination determining information, if transmitted, and for temporarily storing the destination determining information, and means for transferring destination determining information to the telephone switching system, or (b), a second type of response from the calling party for transferring call completion assistant identifying information to the telephone switching system so that the call completion assistant can assist the calling party in completing the call through the telephone switching system, whereby the call may be completed through the telephone switching system with or without call completion assistance at the calling party'"'"'s option.

14. A call processing system which is connected to a telephone switching system serving a plurality of telephone sets, and which operates autonomously with the switching system so that the operation of the call processing system is transparent to the switching system, and for allowing a calling party to choose whether to complete a call directly to one said telephone set, or to complete the call by the use of a call completion assistant, comprising:

a first communication line linking said call processing system to the telephone switching system, said line being of the type connectable to a telephone set so that said switching system can transmit and receive thereon signaling information conventional to a telephone set;

a communication path for receiving calls directed to the telephone switching system;

means for storing digital information representative of an instructional message for instructing the calling party to dial an extension number of a desired called party associated with said one telephone set;

means for converting the digital information into analog voice signals constituting the instructional message;

means for transmitting the analog voice signals over the communication path in response to an incoming call by the calling party;

means in said call processing system for receiving a telephone extension number on said communication path if dialed by the calling party;

means for transmitting the telephone extension number over said first communication line to the telephone switching system so that the switching system can establish communications on a second communication line to said one telephone set associated with the telephone extension number; and

means for transmitting a preassigned telephone extension number over said first communication line to the telephone switching system if no telephone extension number is dialed by the calling party, whereby a communication path is completed by the call processing system to the telephone switching system at the calling party'"'"'s option.

15. The call processing system of claim 14 further including a plurality of said first communication lines linking said call processing system to the telephone switching system so that said call processing system can accommodate corresponding plural simultaneous incoming calls, and means for simultaneously transmitting the analog voice signals of an instructional message to plural calling parties.

16. The call processing system of claim 15 further including means for storing digital information representative of a plurality of instructional messages, and means for switching different said instructional messages to the different calling parties associated with the incoming calls.

17. The call processing system of claim 16 further including means for skewing one said instructional message with respect to another said instructional message of said plurality so that each calling party can receive an entire different instructional message in a spaced apart time interval which is less than the length of each instructional message.

18. The call processing system of claim 14 further including:

means for transmitting said instructional message a predetermined number of times to a calling party, and if no extension number is received in response thereto, said preassigned telephone number is automatically transmitted to the telephone switching system.

19. The call processing system of claim 14 further including means for instructing the calling party with an instructional message to input destination determining information corresponding to an attendant, and means for translating the attendant associated information into a preassigned extension number other than an attendant number for transmission to the switching system.

20. An automated attendant adapted for connection between a station line of a telephone switching system serving a plurality of station sets and a trunk of a central office switching system, comprising:

an input connected to the trunk;

an output connected to the station line;

receiver means connected to said input for receiving a request for service from the central office switching system;

means responsive to the receipt of a request for service by said receiver means for causing a connection to be established to the trunk;

message instruction means responsive to the request for service for outputting an instructional message on the trunk to a caller associated with the central office switching system;

representations of an audio message stored in said message means for instructing said caller to dial destination information known by the caller to be associated with a station set with which the caller desires communications;

means for receiving destination information from the caller and for transferring said information to the telephone switching system; and

means for connecting said input to said output;

the receipt of destination information transferred from said automated attendant causing the telephone switching system to connect the station line to one station set of said plurality such that a communication path is thus established between the caller and said one station set without the assistance of a call completion assistant.

21. The automated attendant of claim 20 further including a plurality of inputs extended toward the central office, and a plurality of outputs extended toward the telephone switching system.

22. The automated attendant of claim 21 wherein each input of said plurality of inputs is dedicated to a different one output of said plurality of outputs.

23. A call intercept system for use with a telephone switching system for intercepting incoming calls before being received by the switching system, and adapted for allowing a calling party placing an incoming call to the switching system an opportunity to complete the call without the intervention of a call completion assistant, comprising:

means for receiving a request for service as a result of the calling party placing a call to the switching system and for preventing said request from initially reaching the call completion assistant;

means in said intercept system operative upon receipt of the request for service for causing a connection path to be established between said intercept system and the calling party while isolating the calling party from the telephone switching system;

an instructional message storage circuit for transmitting on said connection path an instructional message inviting the calling party to transmit information representative of a called party associated with the switching system;

information receiver means for receiving and storing the information if transmitted by the calling party;

means in said intercept system for generating a request for service comprising an off-hook condition directed to the switching system;

means responsive to an acknowledgment of the generated request for service of the switching system for transmitting destination determining information thereto; and

means in said call intercept system for causing a talking path to be established between the calling party and the called party without the intervention of the call completion assistant if called party associated information is received in response to said instructional message, or for causing a different talking path to be established between the calling party and the call completion assistant is assistant associated information is recived.

24. The call intercept system of claim 23 further including a plurality of instructional message storage units for storing different instructional messages, and a matrix for selectively switching a desired instructional message from one storage unit of said plurality of instructional message storage units and directing said selected instructional message to the calling party.

25. The call intercept system of claim 23 wherein said instructional message storage circuit includes means for storing segments of said instructional message, and means for combining said segments into said instructional message.

26. The call intercept system of claim 25 wherein said instructional message storage circuit further includes means for selectively combining each said segment so as to produce a plurality of independent instructional messages.

27. The call intercept system of claim 26 wherein said instructional message storage circuit further includes means for combining each said segment in accordance with a predetermined timed scheme so as to provide each instructional message of said plurality of instructional messages skewed in time one from another.

28. The call intercept system of claim 27 wherein said instructional message storage circuit further includes means for segmenting each said segment of each said instructional message into equal intervals of time.

29. The call intercept system of claim 28 wherein each instructional message of said plurality of instructional messages is skewed in time one from another in an amount substantially equal to the interval of time of which each said segment is comprised.

30. The call intercept system of claim 25 further including means for repeating said instructional message a plurality of times.

31. The call intercept system of claim 30 further including means for inserting an interval of time between the occurrences of a repeated instructional message, whereby said intercept system can establish a connection during said inserted interval of time for initiating transmission of said instructional message to the calling party.

32. A call intercept system for use with a telephone switching system and adapted for allowing a calling party placing an incoming call to said switching system an opportunity to complete said call without the intervention of an attendant, comprising:

means for intercepting a request for service from said calling party and directed toward said switching system;

an instructional message storage circuit including a plurality of storage units for storing different instructional messages;

a matrix for selectively switching an instructional message from one storage unit of said plurality of units to said calling party;

means responsive to said request for service for transmitting a switched instructional message inviting said calling party to transmit information representative of a called party associated with said switching system;

information receiver means for receiving and storing said information if transmitted in response to said switched instructional message;

means for requesting service of said switchng system;

means responsive to an acknowledgment of said request for service of the telephone switching system for transmitting destination information thereto; and

switch means for establishing a talking path between said calling party and said switching system whereby said calling party is placed in communication with said called party without the intervention of an attendant.

33. A call processor for use in conjunction with a telephone switching system having provisions for a call completion assistant, for processing incoming calls directed to the switching system and allowing a calling party to choose whether to complete a call directly to a destination associated with the switching system, or complete the call with the assistance of the completion assistant, comprising:

detector means for detecting a request for service from the calling party initiating a call to a destination of the telephone switching system;

message storage means for storing representations of a plurality of messages, one message of said plurality comprising a message content pertaining to a daytime operation, and another message of said plurality comprising a message content pertaining to a nighttime operation;

means responsive to said detector means for selecting one of said daytime or nighttime message contents and transmitting the selected message content to the calling party; and

means responsive to a first type of response from the calling party for receiving destination determining information therefrom, and for transferring destination determining information to the switching system, and responsive to a second type of response from the calling party for transferring destination determining information associated with the call completion assistant to the switching system such that a communication path may be completed between the calling party and the telephone switching system by the option of the calling party.

34. The call processor of claim 33 wherein said message storage means includes means for storing in the message content pertaining to daytime operations information associated with the call completion assistant, and means for storing in the message content pertaining to nighttime operations information associated with a telephone set of the switching system other than a switchboard telephone.

35. A call processor for use in conjunction with a telephone switching system having provisions for a call completion assistant, for processing an incoming call directed to the switching system, and operable to function in multiple modes for completing calls to the switching system, comprising:

detector means for detecting a request for service from a calling party initiating a call to the telephone switching system;

means responsive to the detection of a request for service by said detector means for causing a connection path to be established to the calling party;

message announcement means responsive to a first mode for transmitting a message to the calling party on said connection path;

means responsive to said first mode and to a first type of response if transmitted by the calling party for receiving and for transferring to the switching system destination determining information associated with the switching system, and responsive to a second type of response if transmitted by the calling party for transferrng to the switching system destination determining information associated with the call completion assistant, whereby a call by the calling party can be completed with or without call completion assistance, at the calling party'"'"'s option; and

second mode means for causing the calling party in a second mode to be connected to the switching system for assistance by the call completion assistant without option by the calling party.

36. The call processor of claim 35 further including sensing means operable during said second mode for sensing when a call directed to the call completion assistant remains unanswered by the call completion assistant for a predetermined period of time, and means responsive to said sensing means sensing the unanswered call for switching to said first mode of operation and causing the transmission of said message to the calling party to input destination determining information.

37. The call processor of claim 36 further including means for selectively switching between the first mode of operation and the second mode of operation, and a third mode of operation wherein incoming calls are first directed to the switching system without option for assistance by the call completion assistant, and those calls made without option which are not answered by the call completion assistant within a predetermined period of time are then intercepted by said call processor, wherein the message is transmitted to the calling party so that the calling party is given an opportunity to complete the call with options to the switching system.

38. The call processor of claim 36 wherein said sensing means includes means for timing an interval in which a call directed to said switching system remains unanswered by said call completion assistnat.

39. The call processor of claim 38 wherein said call processor further includes means for comparing an interval timed by said means for timing against a predetermined interval of time, and upon a match of said timed and predetermined intervals, said call is intercepted by said call processor and said calling party is given an opportunity to complete the call to said switching system according to said first mode.

40. The call processor of claim 35 further including means for selectively switching between said first mode of operation wherein incoming calls are intercepted by said call processor and the calling party is given an opportunity to complete a call to a facility or to the call completion assistant, and said second mode of operation wherein incoming calls are directed to the switching system without option for assistance by the call completion assistant.

41. A call intercept system for use with a telephone switching system and adopted for allowing a party placing an incoming call to said switching system an opportunity to complete said call without the intervention of an attendant, comprising:

a plurality of electrical interface means for interfacing calling parties to said call intercept system;

an instructional message storage unit for providing a plurality of messages instructing the transmission of destination information associated with a called party served by said switching system;

a destination information receiver;

a hybrid circuit for coupling dial information to said destination information receiver, and for coupling instructional messages to calling parties;

a first switching matrix for selectively interconnecting a desired message of said plurality of messages to said hybrid circuit; and

a second switching matrix for selectively interconnecting a desired electrical interface means of said plurality of interface means to said hybrid circuit, whereby any desired message of said plurality of instructional messages can be switched to a calling party associated with any electrical interface means of said plurality of electrical interface means and whereby any desired interface means of said plurality of interface means can be selectively switched so that said destination information receiver can receive destination information from any said calling party during said instructional message.

42. The call intercept system of claim 41 wherein said second switching matrix is adapted for passing bidirectional electrical signals therethrough.

43. The call intercept system of claim 41 wherein each said electrical interface means includes a first port connected to a calling party, a second port connected to said second switching matrix, and a third port connected to said telephone switching system.

44. The call intercept system of claim 43 wherein said electrical interface means further includes means for interconnecting said first port to said third port, whereby a calling party can be connected to said switching system.

45. A call processing system adapted for connecting a calling party to a called party of a telephone switching system, comprising:

interface means including an input directed toward the calling party, a first output connected to a communication line directed toward the switching system, and a second output;

destination determining information receiver means for receiving destination determining information initiated by the calling party;

a message announcement circuit for providing an instructional message;

bi-directional circuit means including

(a) a first input connected to said second output of said interface means,

(b) an output connected to said destination determining information receiver means, and

(c) a second input connected to said message announcement circuit;

means for connecting the input of said interface means to said second output thereof so that the instructional message can be transferred from said message announcement circuit to the calling party, and for connecting oppositely directed destination determining information from the calling party to said destination determining information receiver means during said instructional message;

means for transferring destination determining information received by said destination determining information receiver means to the switching system; and

means for connecting said input of said interface means to said first output thereof, whereby the calling party is connected to the switching system.

46. The call processing system of claim 45 further including means for detecting a first request for service from the calling party, and wherein said message announcement circuit includes means for storing a plurality of messages, each said message being transmittable to the calling party in response to the first request for service, and means for selectively switching one message of said plurality to said second input of said bi-directional circuit means.

47. A method of completing plural incoming telephone calls concurrently to corresponding plural facilities of a telephone switching system using a corresponding plurality of station lines of the switching system, comprising the steps of:

receiving a plurality of requests for service arising respectively from the incoming telephone calls directed toward the telephone switching system;

transmitting an instructional message to the sources of the requests for service to transmit communication facilities identifying information;

receiving and temporarily storing communication facilities identifying information transmitted from said sources of requests in response to said instructional message;

requesting service of said telephone switching system using said station lines;

receiving dial tone on the station lines from the telephone switching system and preventing the dial tone from reaching each said source of request for service;

transmitting communication facilities identifying information resulting from said stored communication facilities identifying information on the station lines to the telephone switching system so that the telephone switching system can effect plural communication paths between respective communication facilities and the respective sources of the requests for service; and

causing the respective sources of requests for service to be connected to respective communication paths to provide for communication to the selected communication facilities.

48. A method for providing access to subscribers of a telephone switching system, comprising the steps of:

receiving a request for service from a calling party placing a first call directed to the switching system;

transmitting to the calling party a message instructing the calling party to respond by transmitting destination determining information associated with a called party;

receiving from the calling party destination determining information;

transmittng signals to the swithcing system for allowing the system to provide a communication path to the called party;

detecting an on-hook condition of the called party after communications with the calling party;

transmitting another instructional message to the calling party to respond by transmitting new destination determining information in order to place a second call;

receiving and transmitting said destination determining information to the switching system; and

causing a communication path to be established between the calling party and a new called party.