Communication device and related methods for offline data record modification and synchronization with a backend server associated with a relay service for hearing-impaired users

Abstract

Communication devices configured to assist hearing-impaired users and related methods are disclosed that synchronize unclean data records of a local database with a remote database of a backend server. Communication elements are configured to receive audio signals from a far end communication device, and to receive text captions corresponding to the audio signals from a relay service for display by the communication device during a call. The memory device stores a local database of data records for the communication device. Each data record has at least one flag associated therewith indicating whether the data record is involved in a modification to the local database by the hearing-impaired user. The processor is configured to synchronize unclean data records from the local database with a remote server associated with the relay service responsive to querying flags in the local database that indicate data records that are unclean.