Communication system, radio communication terminal and display control method

• US 8,768,321 B2
• Filed: 01/24/2007
• Issued: 07/01/2014
• Est. Priority Date: 01/27/2006
• Status: Active Grant

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: Nishimori, Masanori
• Primary Examiner(s): Hu, Jinsong
• Assistant Examiner(s): Chang, Jean
• Application Number:
  US12/162,321
• Publication Number:
  US 20100203875A1
• Time in Patent Office: 2,715 Days
• Field of Search: 455/416, 455/518, 455/519
• US Class Current: 455/416
• CPC Class Codes: H04L 65/4061 Push-to services, e.g. push-to-talk or push-to-video
• CPC Class Codes: H04M 3/42042 Notifying the called party of information on the calling party details within substation equipment H04M1/57, signalling details H04Q3/72
• CPC Class Codes: H04M 3/42093 Notifying the calling party of information on the called or connected party
• CPC Class Codes: H04M 3/436 Arrangements for screening incoming calls , i.e. evaluating the characteristics of a call before deciding whether to answer it based on the calling party profile H04M3/42059; based on location H04M3/42348; based on presence H04M3/42365; diversion H04M3/54
• CPC Class Codes: H04W 76/45 for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services

Abstract

A SIP server generates a second call request for calling out group talk members corresponding to a first call request on the basis of the received first call request. Prior to transmitting the generated second call request to the group talk members, the SIP server transmits call request receiving information indicating that the first call request has been received. An SMS server transmits a start-up message to the group talk members on the basis of the received call request receiving information. The start-up message is used to start up an application which executes a group talk, and includes the member identification information of the group talk.

Claims

1. A communication system that enables a group talk, comprising:

a call control server; and

a message transmission server,

wherein the call control server comprises;

a call request receiver configured to receive a first call request for calling out group talk members;

a call request generator configured to generate a second call request for calling out the group talk members corresponding to the first call request, on the basis of the received first call request; and

a call request transmitter configured to transmit call request receiving information indicating that the first call request is received, prior to transmitting the generated second call request to the group talk members,

wherein the message transmission server comprises;

an information receiver configured to receive the call request receiving information transmitted from the call control server; and

a start-up message transmitter configured to transmit a start-up message, which includes member identification information of the group talk, wherein

a login processing is executed to the call control server on the basis of the start-up message, and

the second call request is generated on the basis of the executed login processing.

2. A radio communication terminal, comprising:

a storage unit configured to store incoming call refusal information for refusing an incoming call;

a receiver configured to receive a start-up message for starting up a login processing to a call control server, from a message transmission server; and

a display unit configured to display that the start-up message includes the incoming call refusal information when the incoming call refusal information includes identification information contained in the start-up message received by the receiver, wherein

the login processing is executed to the call control server on the basis of the start-up message, and

the receiver is configured to receive a second call request for calling out the group talk members corresponding to a first call request on the basis of the executed login processing.

3. The radio communication terminal according to claim 2, comprising:

a controller configured to control such that the login processing to the group talk system is not started when the start-up message contains the incoming call refusal information.

4. A display control method, comprising the steps of:

on the basis of member identification information of a group talk contained in a start-up message for starting the group talk and a login processing to a call control server, and on the basis of member identification information of the group talk which is notified after the login processing to the call control server, determining whether or not there is a difference between the member identification information notified after the login processing and the member identification information contained in the start-up message; and

displaying that there is the difference when the difference exists, wherein

the login processing is executed to the call control server on the basis of the start-up message, and

a second call request for calling out group talk members is generated on the basis of the executed login processing.