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WO2001076314A2 - Dynamic local hold - Google Patents

Dynamic local hold Download PDF

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Publication number
WO2001076314A2
WO2001076314A2 PCT/CA2001/000441 CA0100441W WO0176314A2 WO 2001076314 A2 WO2001076314 A2 WO 2001076314A2 CA 0100441 W CA0100441 W CA 0100441W WO 0176314 A2 WO0176314 A2 WO 0176314A2
Authority
WO
WIPO (PCT)
Prior art keywords
feature
hold
call
request
external
Prior art date
Application number
PCT/CA2001/000441
Other languages
French (fr)
Other versions
WO2001076314A3 (en
Inventor
Tom Maher
Ciaran O'rourke
Christophe Caullier
Original Assignee
Eicon Technology Corporation
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 Eicon Technology Corporation filed Critical Eicon Technology Corporation
Priority to AU2001246274A priority Critical patent/AU2001246274A1/en
Publication of WO2001076314A2 publication Critical patent/WO2001076314A2/en
Publication of WO2001076314A3 publication Critical patent/WO2001076314A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0435—Details
    • H04Q11/0457—Connection protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13034—A/D conversion, code compression/expansion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13039—Asymmetrical two-way transmission, e.g. ADSL, HDSL
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13096—Digital apparatus individually associated with a subscriber line, digital line circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13176—Common channel signaling, CCS7
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13204—Protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13205—Primary rate access, PRI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13209—ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1322—PBX
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1324—Conference call
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1326—Consultation call, broker's call, call hold, toggling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13389—LAN, internet

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

This feature implements held call management by defaulting to 'External hold' behavior and automatically switching to 'Local hold' behavior if the attempt to hold the call in the switch fails. This ensures that held call management can be transparently supported without the user having to be aware of whether or not the HOLD service is provisioned in the switch. The software always attempts to use the method which is most efficient in terms of resource usage first (i.e. the method that allows two calls to use one channel). The fact that switching to 'local hold' is dynamic is particularly useful given that the failure of a particular HOLD request may be due to a transient condition. The methods can also be used to answer requests for other features on the line such as conference or transfer to other parties.

Claims

10CLAIMS
1. A method for answering a request to use a feature on a transmission line, comprising the steps of: receiving a request for a feature to be used on a transmission line; attempting to answer to said request by using an external feature from a switch on said transmission line; and if said external feature is not available from said switch, answering said request locally by using a local feature; wherein said request to use a feature on said transmission line is answered by using the external feature on the switch if it is available or is answered locally if it is not available.
2. A method as claimed in claim 1 , wherein said request is a request for holding a call, wherein a first call has been connected and wherein said first call is held using either an external hold or a local hold depending on the availability of said external hold on said line.
3. A method as claimed in any one of claims 1 and 2, further comprising a step of storing an indication of the non-availability of said external feature on said line.
4. A method as claimed in claim 3, further comprising a step of using said indication of the non-availability of said external feature to terminate said step of attempting to answer to said request using said external feature.
5. A method as claimed in any one of claims 3 and 4, further comprising a step of resetting said indication of the non-availability of said external feature after at least one of a next power down and the lapse of a pre-determined time period.
6. A method as claimed in any one of claims 1 to 5, wherein said availability of said external feature is determined by the receipt of an acknowledgment message for a feature request that was sent to a switch on said line. 11
7. A method as claimed in claim 2, wherein the method comprises the steps of: receiving a user command to hold the first call, sending a hold message for the first call to a switch, setting the first call state to held if an acknowledgment message for a hold request is received for the first call, setting the first call state to local_held and muting the first call's B- channel if the acknowledgement message for a hold request is not received for the first call and sending a setup message to the switch to originate a second call on the line, wherein the first call is held using an external hold if the switch supports the hold feature and the first call is held using a local hold if the switch does not support the hold feature.
8. A method as claimed in any one of claims 1 to 7, wherein said transmission line is an ISDN line.
9. An apparatus answering a request to use a feature on a transmission line, comprising: a feature request receiver for receiving a request to use a feature on a transmission line; an external feature requester for attempting to answer to the request by using an external feature from a switch on said transmission line; an external feature status determiner for determining if said external feature is available from said switch on said line; a local manager for answering said request by using a local feature if said external feature is not available on said line; wherein said request to use a feature on said transmission line is answered by using the external feature on the switch if available or is answered locally if not.
10. An apparatus as claimed in claim 9, wherein said request is a request for 12
holding a call, wherein a first call has been connected and wherein said first call is held using either an external hold or a local hold depending on the availability of said external hold on said line.
11. An apparatus as claimed in any one of claims 9 and 10, wherein said external feature status determiner stores an indication of the non-availability of said external feature on said line.
12. An apparatus as claimed in claim 11 , further comprising an attempt reset for using said indication of the non-availability of said external feature to terminate said attempt to answer to said request using said external feature.
13. An apparatus as claimed in any one of claims 11 and 12, further comprising an indication reset for resetting said indication of the non-availability of said external feature after at least one of a next power down and the lapse of a pre-determined time period.
14. An apparatus as claimed in any one of claims 9 to 13, wherein said an external feature status determiner determines the availability of said external feature by the receipt of an acknowledgment message for a feature request that was sent to a switch on said line.
15. An apparatus as claimed in claim 10, wherein: the feature request receiver receives a user command to hold the first call; the external feature requester sends a hold message for the first call to a switch, the external feature status determiner sets the first call state to held if an acknowledgment message for a hold request is received for the first call and sets the first call state to local_held if the acknowledgement message for a hold request is not received for the first call; the local manager mutes the first call's B-channel and sends a setup message to the switch to originate a second call on the line, wherein the first call is held using an external hold if the switch supports 13
the hold feature and the first call is held using a local hold if the switch does not support the hold feature.
16. A method as claimed in any one of claims 9 to 15, wherein said transmission line is an ISDN line.
PCT/CA2001/000441 2000-03-31 2001-03-30 Dynamic local hold WO2001076314A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001246274A AU2001246274A1 (en) 2000-03-31 2001-03-30 Dynamic local hold

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19336100P 2000-03-31 2000-03-31
US60/193,361 2000-03-31

Publications (2)

Publication Number Publication Date
WO2001076314A2 true WO2001076314A2 (en) 2001-10-11
WO2001076314A3 WO2001076314A3 (en) 2002-04-04

Family

ID=22713329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2001/000441 WO2001076314A2 (en) 2000-03-31 2001-03-30 Dynamic local hold

Country Status (2)

Country Link
AU (1) AU2001246274A1 (en)
WO (1) WO2001076314A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195087A (en) * 1990-08-31 1993-03-16 At&T Bell Laboratories Telephone system with monitor on hold feature
US5485511A (en) * 1994-09-08 1996-01-16 Siemens Rolm Communications Inc. Method and apparatus for determining the telephony features assigned to a telephone
EP0967827A2 (en) * 1994-06-27 1999-12-29 International Business Machines Corporation Method for performing call forwarding service with an ISDN network terminator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195087A (en) * 1990-08-31 1993-03-16 At&T Bell Laboratories Telephone system with monitor on hold feature
EP0967827A2 (en) * 1994-06-27 1999-12-29 International Business Machines Corporation Method for performing call forwarding service with an ISDN network terminator
US5485511A (en) * 1994-09-08 1996-01-16 Siemens Rolm Communications Inc. Method and apparatus for determining the telephony features assigned to a telephone

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Integrated Services Digital Network (ISDN); Generic functional protocol for the support of supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification" ETSI EN 300 196-1 V1.2.2, April 1998 (1998-04), XP002184504 cited in the application *
KASER K: "DAS KOMPLETTE LEISTUNGS-UMFELD VON ISDN" FUNKSCHAU, vol. 67, no. 11, 12 May 1995 (1995-05-12), pages 24-30, XP000517146 ISSN: 0016-2841 *

Also Published As

Publication number Publication date
AU2001246274A1 (en) 2001-10-15
WO2001076314A3 (en) 2002-04-04

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