Telecommunication system

• US 6,304,566 B1
• Filed: 06/30/1997
• Issued: 10/16/2001
• Est. Priority Date: 06/30/1997
• Status: Expired due to Term

• Current Assignee: Siemens Information And Communication Networks, Inc. (Siemens AG)
• Original Assignee: Siemens Telecom Networks (Siemens AG)
• Inventors: Schessel, Larry E.
• Primary Examiner(s): Olms, Douglas
• Assistant Examiner(s): VANDERPUYE, KENNETH N
• Application Number:
  US08/885,318
• Time in Patent Office: 1,569 Days
• Field of Search: 370/352, 370/353, 370/354, 370/465, 370/466, 370/410, 370/401, 370/522, 379/201, 379/207, 379/209, 379/210-213, 379/230
• US Class Current: 370/354
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 2012/6443 Network Node Interface, e.g. Routing, Path finding
• CPC Class Codes: H04L 2012/6472 Internet
• CPC Class Codes: H04L 2012/6475 N-ISDN, Public Switched Telephone Network [PSTN]
• CPC Class Codes: H04L 2012/6486 Signalling Protocols
• CPC Class Codes: H04M 2242/22 Automatic class or number identification arrangements
• CPC Class Codes: H04M 3/42059 Making use of the calling party identifier
• CPC Class Codes: H04M 3/42102 Making use of the called party identifier
• CPC Class Codes: H04M 3/42161 via computer interface
• CPC Class Codes: H04M 3/42314 in private branch exchanges
• CPC Class Codes: H04M 3/4234 Remote access to features of PBX or home telephone systems-teleworking in a PBX
• CPC Class Codes: H04M 7/0057 Services where the data services network provides a telephone service in addition or as an alternative, e.g. for backup purposes, to the telephone service provided by the telephone services network
• CPC Class Codes: H04Q 3/72 Finding out and indicating number of calling subscriber

Abstract

A telecommunication system for enabling a subscriber to calling features available by a central office to have access to such calling features when such subscriber is accessing the central office through either a line connected to the central office or an Internet, Intranet, Extranet (i.e., IP) network which uses the TCP/IP network protocol. The method includes the steps of: processing signals received by the central office from the subscriber through either the IP network or the line connected to the central office to determine whether the subscriber is placing a call to the central office through either the line to the central or through the IP network; and making such calling features available to the subscriber independent of whether the subscriber is connected to the central office through the line to the central office or through the IP network. With such a system, calling feature provided at a central office are available to a subscriber to such calling features anywhere ion the world via the IP network.

Claims

1. A telecommunication system adapted for use with an IP network, such system comprising:

a public service telephone network comprising a plurality of connected central offices each one thereof being connected to a plurality of subscribers serviced by the central office, at least one of the central offices, comprising;

a processor coupled to;

a subscriber line unit servicing the subscribers served by the central office;

trunk units coupled to other ones of the central offices; and

an IP network interface for converting between a central office protocol and an IP network, TCP/IP, protocol, the processor being coupled to the IP network through the IP network interface;

a switching network having ports thereof fed by the subscriber line unit, the trunk units and the IP network interface for routing calls between the ports selectively in accordance with switching signals provided by the processor in the central office protocol;

a database for storing a relationship between each one of the subscribers served by the central office and calling features subscribed to by such one of the served subscribers;

and wherein the processor detects when a calling one of the subscribers served by the central office is accessing the central office from either the subscriber line unit or the IP network interface and addresses the database using the central office protocol to provide such calling subscriber with subscribed calling features when the calling subscriber is routed to a called party through the switching network.

2. The telecommunication system in claim 1, wherein the IP network is a cable based IP network.

3. The telecommunication system in claim 1, wherein the processor detects the called party is accessing the central office from the IP network and converts the central office protocol to the IP network, ICP/IP protocol for sending subscribed calling features to the called party.

4. A telecommunication system adapted for use with an IP network, such system comprising:

a public service telephone network comprising a plurality of connected central offices each one thereof being connected to a plurality of subscribers serviced by the central office, at least one of the central offices, comprising;

a processor coupled to;

a subscriber line unit servicing the subscribers served by the central office; and

an IP network interface for converting between a central office protocol and an IP network, TCP/IP, protocol, the processor being coupled to the IP network through the IP network interface; and

a database for storing a relationship between each one of the subscribers served by the central office and calling features subscribed to by such one of the served subscribers;

wherein the processor detects when a calling one of the subscribers served by the central office is accessing the central office from either the subscriber line unit or the IP network interface and addresses the database using the central office protocol to provide such calling subscriber with subscribed calling features when the calling subscriber is routed to a called party through a switching network.

5. The telecommunication system in claim 4, wherein the IP network is a cable-based IP network.

6. The telecommunication system in claim 4, wherein the processor detects the called party is accessing the central office from the IP network and converts the central office protocol to the ICP/IP protocol for sending subscribed calling features to the called party.