METHOD AND SYSTEM FOR CONTROLLING COLOUR RING BACK TONE SERVICE IN IP MULTIMEDIA SUBSYSTEM Russian patent published in 2013 - IPC H04L29/08

Abstract RU 2494563 C2

FIELD: information technology.

SUBSTANCE: method includes steps where: a CRBT service server receives a self-contained CRBT service call from a user, outputs to the user with an inviting tone signal, detects a key pressing operation performed by the user according to the inviting tone signal and controls the CRBT service for the user according to the key pressing operation.

EFFECT: enabling a user to directly control the CRBT service to achieve a technical effect consisting in saving labour resources.

7 cl, 4 dwg

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RU 2 494 563 C2

Authors

Geh Khao

Lu Tao

Shehn' Sun

Dates

2013-09-27—Published

2010-03-23—Filed