Abstract: Network announcements are cached on an announcement card, so that the phonemes do not have to be read from disk every time an announcement is needed. Memory is provided on the announcement card to hold the phonemes of announcements are they are used by the announcement system. A suitable caching algorithm is used to replace stored announcements with other announcements as needed. Each announcement card stores its own set of announcements, which may or may not be the same as another announcement card. Thus, on the average, announcements may be more readily available, increasing the speed and capacity of the network announcement system without major modification.

Abstract: An arrangement for providing voice dialing service to wireless subscribers when they are not being served by their home mobile switch, and service node. When a voice dialing request from a roamer is detected, the voice dialing data file of the roamer is requested by a broadcast message from the home service node of the roamer. The home service node responds to the broadcast request by transmitting the voice dialing data file to the requesting service node. The requesting service node retains the voice dialing data file as long as there are sufficiently frequent requests (e.g., once per day), for voice dialing service from the roamer. Advantageously, this arrangement allows voice dialing service to be provided to roamers as well as to mobile stations in their home area.