Apparatus and method of controlling delivery of text messages to a subscriber (2, 9, 10) in a telecommunications services apparatus, the method comprising the steps of the subscriber making a selection as to a mode of delivery that the subscriber requires for one of (i) a future text message and (ii) a category of future text messages, for example delivery by fax or e-mail, the subscriber's requested selection being implemented by a message processing means (3) in the form of an SMS router which is part of the home network (B) with which the subscriber's mobile telephone is normally associated, the arrangement being such that any text messages intended by the sender (1) to be delivered to the said subscriber, as intended receiver thereof, are directed to the message processing means which then implements the delivery mode previously selected by the subscriber (2, 9, 10).