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Touch Tone Dialling Numbers Stored in an Electronic Organizer's Telephone Book Disclosure Number: IPCOM000132043D
Original Publication Date: 2005-Nov-30
Included in the Prior Art Database: 2005-Nov-30
Document File: 1 page(s) / 24K

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Mobile electronic organizers in mobile phones or PDAs are commonly used to store telephone books. Very often users look up a phone number in their mobile device and dial it manually for example on a public landline telephone. There exist numerous ways to synchronize telephone numbers between different types of electronic devices, but most of them require special software and/or cables. Also, in many cases, a user might not want to leave his numbers stored on a public telephone.

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Touch Tone Dialling Numbers Stored in an Electronic Organizer's Telephone Book

Enabling an electronic organizer to output the touch tones associated with a selected stored number can solve the problem mentioned above in a very simple manner. One holds the speaker of the organizer next to the microphone of the phone on which the number should be dialled while the touch tone sound is being output. In most cases the dialled number is not being stored, which can be a privacy advantage e.g. on a public phone. The feature can be further enhanced through a touch tone decoder that enables a second phone or organizer to decode and save a number from touch tones received either from speaker to microphone or via the telephone line during a conversation. The major advantage of this proposal is that it can be implemented entirely in software and does not need any modification on the phone from which the call is actually made. The simplest implementation would be a JAVA application that looks up a telephone number from the organizer's phone book and emits the touch tones through it's speaker. Alternatively the functionality can also be integrated directly into the device's system in which case the manufacturer would have to implement the feature. The enhanced feature of decoding touch tones would simply be implemented by recording a touch tone sequence through a microphone displaying the number on the screen, enabling the user to save the number in his address book.