Patent ID: 9201641
Filing Date: 2015-12-01
Classification: G06F,H04L,H04M

Abstract:
1. A method of upgrading the software of a telephone terminal of a telecommunication network, comprising: periodically making, from the terminal to a service center of said network, a telephone call to a number managed by said service center, said telephone call containing information related to the current software version installed on the terminal; receiving, at the terminal, a result signal as an answer to said telephone call without affecting the terminal's ability to receive or make phone calls, and prior to activating a data connection between the terminal and said service center, wherein said result signal comprises a dual-tone multi-frequency sequence indicating whether the current software version corresponds to a correct software version, and whether or not a software upgrade is necessary to maintain one or more features of the terminal; estimating a period of time required for a necessary software download and automatically activating the data connection between the terminal and a management server included in said service center if the estimated time period is below a threshold; and receiving from the management server a download of software for the upgrade, the download being managed by the management server.