American Telephone & Telegraph Co., At&t Bell Laboratories

8631654 Canada Inc.

John P Ernst

Alan Eugene Frey

Wayne A Davidson

John J Stanaway, Jr

Simon S Ou

Robert A Trygar

Jon R Diener

John A Kerkstra

Norman R Tiedemann

Carl W Amport

Neenendra R Pandya

John H Schick

Ram Kuppuswami

Marybeth Herkes

Andrew B Struble

Timothy A Satalich

An exemplary method provides access to call origination features contained in an internet protocol multimedia subsystem (IMS) for a subscriber of the IMS who originates a call request from customer premises equipment (CPE) outside of the IMS. The call request is received at a public service identity (PSI) server in the IMS with a phone number to which the call request is routed. An IMS internal desk number is retrieved based on the number of the outside CPE. A first modified call request is transmitted from the PSI server to a telephony application server (TAS) identifying the IMS internal desk number as a request universal resource identity (RURI). Call origination treatment as specified by the subscriber is performed by the TAS. The first modified call request is processed by the TAS to form a second modified call request in which the RURI is a number of a destination party and a P-asserted identity (PAID) is the IMS internal desk number such that the second modified call request appears as if it was initiated from a phone within the IMS. The second modified call request is transmitted to a node in the IMS for further processing and ultimately termination at the destination party.

Extending originating capabilities of a subscriber to devices in any telephony network

A call coverage arrangement in which coverage personnel are informed of the switch-hook status of covered terminals by way of a single two-part indicator on the coverage terminal. The two-part indicator indicates switch-hook status for any one of a number of covered terminals. The first part of the indicator identifies the covered terminal and the second part defines the switch-hook status of the identified terminal. The arrangement is flexible in providing coverage for additional terminals and in providing coverage via forwarding from any termianl, since there is no need to assign and dedicate status indicators to particular terminals.

Call coverage arrangement

Growing community of inventors

Warrenville, IL, United States of America

John P Ernst