(Reuters) -Top Australian telecom firm Telstra Group reported a 31% rise in full-year profit on Thursday, driven by sustained growth in its mobile segment, and announced a A$1 billion buyback.

The company said its profit for the year ended June 30 came in at A$2.34 billion ($1.53 billion), rising from A$1.79 billion a year ago.

The result was in line with the Visible Alpha consensus estimate of A$2.34 billion.

($1 = 1.5284 Australian dollars)