Tom Online's ( TOMO) fourth-quarter earnings jumped 55% from a year ago, matching estimates on strong sales of its wireless messaging services. The Hong Kong company earned $12.7 million, or 24 cents per American depositary share, up from $8.2 million a year ago. Analysts surveyed by Thomson First Call had been expecting earnings of 24 cents an ADS in the latest quarter. Total sales rose 39% to $48.1 million, reflecting a 40% rise in wireless Internet revenue to $44.6 million. Analysts had been forecasting sales of $48 million in the latest quarter. One of the company's major segments is so-called short-message services, where revenue rose 60% from a year ago to $17.8 million. Tom said the SMS business "stabilized from third-quarter levels as the benefits from higher revenue confirmation rates it received from mobile operator partners normalized quarter on quarter," Tom said. "While SMS is a more mature business line for TOM Online, the company believes it will continue to be a core contributor to its overall wireless Internet business for the foreseeable future." Tom expects to post revenue of between $47.7 million to $48.5 million in the first quarter. Analysts were expecting $49 million, according to Thomson First Call. Shares closed at $16.47 Thursday.