Patent ID: 7715367
Filing Date: 2010-05-11
Classification: H04M

Abstract:
1. An IP telephone system comprising: an IP telephone apparatus that is connected to an IP network; a Web server that registers talk volume information corresponding to a telephone number assigned to said IP telephone apparatus, and returns the talk volume information in response to a request from said IP telephone apparatus; and an ENUM (Telephone Number Mapping) server that registers a NAPTR (Name Authority Pointer) resource record in which a URI (Uniform Resource Identifier) specifies link data related to the talk volume information and returns the NAPTR resource record in response to a query from said IP telephone apparatus, wherein said IP telephone apparatus that has received a call transmits, to said ENUM server, a query for a NAPTR resource record according to a targeted recipient phone number, and transmits, to said Web server, a request for the talk volume information corresponding to the targeted recipient phone number according to the returned NAPTR resource record, and adjusts talk volume according to the returned talk volume information, and wherein a predetermined protocol is specified in the NAPTR resource record registered in said ENUM server, and said IP telephone apparatus that has received a call transmits, to said Web server, the request for the talk volume information corresponding to the targeted recipient phone number according to the predetermined protocol.