| 摘要 |
Subscribers in a mobile communications system are provided with a bundle of call time each billing period, against which standard call types are rated. If, at the end of one billing period, a portion of the bundle for that billing period remains, the rating system associates the remaining portion with a bundle provided for the forthcoming billing period. In one embodiment, rating is interrupted whilst any remaining portions of the previous bundles are added to the newly-created bundles for the next period. In other embodiments, the rating system refers both to the current bundle and to a previous bundle when rating standard call types. |
