Method for converting a three-party telecommunications connection which is switched via the public communications network into a two-party telecommunications connection

• US 7,046,776 B1
• Filed: 05/12/2000
• Issued: 05/16/2006
• Est. Priority Date: 05/17/1999
• Status: Expired due to Fees

• Current Assignee: Nokia Siemens Networks GmbH & Company KG (Nokia Corporation)
• Original Assignee: Siemens AG
• Inventors: Krembs, Bernhard, Henz, Volker
• Primary Examiner(s): TAYLOR, BARRY W
• Application Number:
  US09/979,532
• Time in Patent Office: 2,195 Days
• Field of Search: 379/112.05, 379/114.01, 379/114.12, 379/114.21, 379/114.02
• US Class Current: 379/114.02
• CPC Class Codes: H04M 2203/2022 Path replacement
• CPC Class Codes: H04M 3/4228 in networks
• CPC Class Codes: H04M 3/56 Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities video conference systems H04N7/15
• CPC Class Codes: H04M 3/58 Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party substation line holding circuits H04M1/80
• CPC Class Codes: H04Q 2213/1307 Call setup
• CPC Class Codes: H04Q 2213/13204 Protocols
• CPC Class Codes: H04Q 2213/1324 Conference call
• CPC Class Codes: H04Q 2213/1328 Call transfer, e.g. in PBX
• CPC Class Codes: H04Q 3/0016 Arrangements providing connection between exchanges

Abstract

A method for converting a three-party telecommunications connection which is switched via the public communications network into a two-party telecommunications connection wherein, after the telecommunications switching office (VST B), via which a three-party telecommunications connection between two subscriber lines and a further subscriber line or between two subscriber lines and an operator'"'"'s position is routed, has received a request from the further subscriber line or the operator'"'"'s position, a new direct telecommunications connection is set up between the two subscriber lines and the existing sections of the three-party telecommunications connection between these two subscriber lines and the further subscriber line or the operator'"'"'s position are released.

Claims

1. A method for converting a three-party telecommunications connection, which is switched via a public communications network, between two subscriber lines and one of a further subscriber line and an operator'"'"'s position, the three-party telecommunications connection being routed via a telecommunications switching office to which the one of the further subscriber line and the operator'"'"'s position is connected, into a two-party telecommunications connection between the two subscriber lines, the method comprising the steps of:

initiating setup, via the telecommunications switching office, and after reception of a request originating from the one of the further subscriber line and the operator'"'"'s position, of a new direct telecommunications connection between the two subscriber lines, wherein the telecommunications switching office requests one of two further telecommunications switching offices to which the two subscriber lines are respectively connected to set up the new telecommunications connection in accordance with a selection which is made as a function of a tariff model which forms a basis of a billing system; and

releasing, after a successful setup of the direct telecommunications connection, existing sections of the three-party telecommunications connection which is routed via the telecommunications switching office, between the two subscriber lines and the one of the further subscriber line and the operator'"'"'s position.

2. A method for converting a three-party telecommunications connection as claimed in claim 1, the method further comprising the step of:

connecting the two subscriber lines, between which the new direct telecommunications connection is set up, to a common telecommunications switching office.

3. A method for converting a three-party telecommunications connection as claimed in claim 1, the method further comprising the step of:

receiving, via the telecommunications switching office which is requested to set up the new telecommunications connection, at least one of a uniquely defined ringing signal and a call number of the second subscriber line from the telecommunications switching office which accepts the new telecommunications connection and to which the second subscriber line of the two subscriber lines is connected.

4. A method for converting a three-party telecommunications connection, which is switched via a public communications network, between two subscriber lines and one of a further subscriber line and an operator'"'"'s position, comprising:

routing the three-party telecommunications connection via a telecommunications switching office to which the one of the further subscriber line and the operator'"'"'s position is connected;

initiating setup, via the telecommunications switching office, and after reception of a request originating from the one of the further subscriber line and the operator'"'"'s position, of a new direct telecommunications connection between the two subscriber lines, wherein the telecommunications switching office requests one of two further telecommunications switching offices to which the two subscriber lines are respectively connected to set up the new telecommunications connection in accordance with a selection which is made as a function of a tariff model which forms a basis of a billing system; and

releasing, after a successful setup of the direct telecommunications connection, existing sections of the three-party telecommunications connection which is routed via the telecommunications switching office, between the two subscriber lines and the one of the further subscriber line and the operator'"'"'s position, to establish a two-party telecommunications connection between the two subscriber lines.