Communication terminal apparatus

• US 5,073,922 A
• Filed: 06/20/1990
• Issued: 12/17/1991
• Est. Priority Date: 12/16/1987
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Okada, Naoyuki
• Primary Examiner(s): SCHREYER, STAFFORD
• Application Number:
  US07/540,797
• Time in Patent Office: 545 Days
• Field of Search: 379/373, 379/164, 379/171, 379/172, 379/173, 379/217, 379/375
• US Class Current: 379/164
• CPC Class Codes: H04M 1/715 using two or more extensions per line cordless telephones H04M1/725
• CPC Class Codes: H04M 19/02 providing ringing current or supervisory tones, e.g. dialling tone or busy tone
• CPC Class Codes: H04M 3/533 Voice mail systems
• CPC Class Codes: H04Q 11/0471 Terminal access circuits
• CPC Class Codes: H04Q 2213/097 Numbering
• CPC Class Codes: H04Q 2213/18 Ringing
• CPC Class Codes: H04Q 2213/256 Call screening

Abstract

A communication terminal apparatus is used in a network system in which a sub address is affixed to a subscriber apparatuses from each other. A proper incoming call indicating tone is registered beforehand in correspondence with a sub address, and an incoming call indicating tone which has been registered in accordance with the sub address is output when a terminating call is received. In consequence, a called terminal can be discriminated by the incoming call indicating tone. Further, a desired incoming call terminating tone can be heard.

Claims

1. A communication terminal apparatus employed in a network system operated with a subscriber number affixed with a sub address so as to allow a plurality of communication terminal apparatuses to be discriminated from each other, comprising:

a sub address discriminating means for discriminating a plurality of sub addresses from each other;

an incoming call indication tone registration means for registering a proper incoming call indication tone through a handset in correspondence with a sub address; and

an incoming call indication tone outputting means for outputting an incoming call indication tone which has been registered in said incoming call indication tone registration means in accordance with said sub address when a terminating call is received.

2. A communication terminal apparatus according to claim 1, wherein said incoming call indicating tone registration means has a memory area for each sub address, and stores an incoming call indicating tone which is characteristic to said memory area.

3. A communication terminal apparatus according to claim 2, wherein said each of said memory areas stores incoming call indicating tone data corresponding to the respective sub address and wherein said incoming call indicating tone outputting means reads out incoming call indicating tone data from a memory, and outputs an incoming call indicating tone on the basis of said incoming call indicating tone data which has been read out.

4. A communication terminal apparatus according to claim 1, wherein said incoming call indicating tone outputting means detects a terminating call signal, discriminates a sub address contained in said terminating call signal, and outputs an incoming call indicating tone in accordance with said sub address which has been discriminated.

5. A communication terminal apparatus according to claim 1, wherein said network system is a digital network system.

6. A communication terminal apparatus according to claim 1, further comprising a plurality key input means, registration of an incoming call indicating tone by said incoming call indicating means being performed by the input of particular key input means.

7. A communication terminal apparatus employed in a network system operated with a subscriber number affixed with a sub address so as to allow a plurality of communication terminal apparatuses to be discriminated from each other, comprising:

a sub address discriminating means for discriminating a plurality of sub addresses from each other;

an incoming call indication tone registration means having a respective incoming call indication tone already stored in correspondence with each of said sub addresses; and

an incoming call indication tone outputting means for outputting an incoming call indication tone which has been registered in said incoming call indication tone registration means in accordance with a discriminated sub address which is associated with an incoming call.

8. A communication terminal apparatus according to claim 7, wherein said incoming call indicating tone registration means has a memory area for each sub address, and stores an incoming call indicating tone which is characteristic to said memory area.

9. A communication terminal apparatus according to claim 8, wherein each of said memory areas stores incoming call indicating tone data corresponding to the respective sub address, and wherein said incoming call indicating tone outputting means reads out incoming call indicating tone data from a memory area, and outputs an incoming call indicating tone on the basis of said incoming call indicating tone data which has been read out.

10. A communication terminal apparatus according to claim 7, wherein said incoming call indicating tone outputting means detects a terminating call signal, discriminates a sub address contained in said terminating call signal, and outputs an incoming call indicating tone in accordance with said sub address which has been discriminated.

11. A communication terminal apparatus according to claim 7, wherein said network system is a digital network system.

12. A communication terminal apparatus according to claim 7, further comprising a plurality of key input means, registration of an incoming call indicating tone by said incoming call indicating means being performed by the input of particular key input means.