| 摘要 |
<p>Errors in dialing or otherwise entering network access codes such as telephone numbers are identified by comparing each entered code with a set of stored codes. Each entered code is also stored. For each stored code, statistics are compiled that reflect the likelihood that the code is invalid. Such statistics include frequency of use over a given time period, the length of the connection to the network after each use, and the length of time after ending a short connection that a different but similar or more probably correct code is entered. Similarity between codes is preferably measured by determining in how many positions the codes agree. If an entered code has a statistically low likelihood of being correct, then the system replaces it with a code that is sufficently similar, or immediately follows it sufficently often. The system checks, for example, for possible likely transposition errors. By comparing on a position-by-position basis, the system may also suggest to the user the likely complete code before it is completely entered, thus providing a 'quick-dial' feature for frequently dialed numbers without needing dedicated keys. The systems is locally intelligent in that it does not need to rely on any signals from the network to identify dialing errors.</p> |
