CA2023140A1 - Alternate destination call redirection for telecommunications systems - Google Patents

Alternate destination call redirection for telecommunications systems

Info

Publication number
CA2023140A1
CA2023140A1 CA 2023140 CA2023140A CA2023140A1 CA 2023140 A1 CA2023140 A1 CA 2023140A1 CA 2023140 CA2023140 CA 2023140 CA 2023140 A CA2023140 A CA 2023140A CA 2023140 A1 CA2023140 A1 CA 2023140A1
Authority
CA
Canada
Prior art keywords
destination
call
pbx
choice
alternate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2023140
Other languages
French (fr)
Other versions
CA2023140C (en
Inventor
Alan Eugene Frey
Joshua Hal Rosenbluth
Susan Jane Sobel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of CA2023140A1 publication Critical patent/CA2023140A1/en
Application granted granted Critical
Publication of CA2023140C publication Critical patent/CA2023140C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)

Abstract

ALTERNATE DESTINATION CALL REDIRECTION
FOR TELECOMMUNICATIONS SYSTEMS
Abstract This invention relates to apparatus and methods for redirecting calls from a first choice destination to some alternate destination if the call cannot be conveniently completed to the first destination. A call is initially extended through a toll network toward the first destination; if the toll network is congested and cannot reach an egress switch to access the first destination, or if a local exchange network connecting the first destination to the toll network is congested, or if a firstdestination PBX cannot be reached from the toll or local network because all access channels thereto are blocked, or if the first destination PBX is congested or attendants are unavailable, an indication that the call cannot be completed to the first destination is sent back to the ingress switch to the toll network for that call. The call is then redirected from the ingress switch of the toll network to an alternate destination. In some cases, this alternate destination may be the same as the first destination but accessed from a different egress switch of the toll network.
Advantageously, this arrangement allows calls to be completed to an alternate destination regardless of the reason why the call cannot be completed to the first choice destination. If the first choice destination is a program-controlled PBX, the PBX can be programmed to reject certain types of calls according to the traffic load being handled by the PBX and the particular staffing available at a certain time.
Thus, for example, the PBX could be arranged to accept calls for new orders but to redirect calls requesting information about shipments if the staffing of the first choice destination is relatively low. The reason for rejection can be used for altering the choice of an alternate destination or for canceling a potential redirection.
CA 2023140 1990-03-28 1990-08-13 Alternate destination call redirection for telecommunications systems Expired - Lifetime CA2023140C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50064990A 1990-03-28 1990-03-28
US500,649 1990-03-28

Publications (2)

Publication Number Publication Date
CA2023140A1 true CA2023140A1 (en) 1991-09-29
CA2023140C CA2023140C (en) 1994-06-21

Family

ID=23990345

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2023140 Expired - Lifetime CA2023140C (en) 1990-03-28 1990-08-13 Alternate destination call redirection for telecommunications systems

Country Status (1)

Country Link
CA (1) CA2023140C (en)

Also Published As

Publication number Publication date
CA2023140C (en) 1994-06-21

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