US Patent No. 9,473,937

METHOD, SYSTEM AND RECEIVING TERMINAL FOR PROCESSING INFORMATION BASED ON DUAL-TONE MULTI-FREQUENCY


Patent No. 9,473,937
Issue Date October 18, 2016
Title Method, System And Receiving Terminal For Processing Information Based On Dual-tone Multi-frequency
Inventorship Wen Fang, Shenzhen (CN)
Lijun Tian, Shenzhen (CN)
Assignee ZTE CORPORATION, Shenzhen (CN)

Claim of US Patent No. 9,473,937

1. A method for processing information based on dual-tone multifrequency, comprising:
a sending terminal establishing a voice call with a receiving terminal;
the sending terminal receiving input key information, encoding the key information into dual-tone multifrequency information,
and transmitting the dual-tone multifrequency information and voice call audio information to the receiving terminal together;
and

the receiving terminal decoding and restoring the dual-tone multifrequency information to the key information; determining
a type of the key information according to a preset key information judgment policy, and performing corresponding operations
according to the key information;

wherein, the key information judgment policy comprises:
when the key information is an 11-digit numeric number, and first three digits of the numeric number have a mobile phone number
characteristic, judging that the numeric number is a mobile phone number;

when the key information is an 11-digit numeric number, and first three digits or first four digits of the numeric number
have a fixed-line telephone number characteristic, judging that the numeric number is a fixed-line telephone number;

when the key information is an 18-digit numeric number, and first six digits of the numeric number have an identity card address
code characteristic, judging that the numeric number is an identity card number.