1. A configurable speech recognizer comprising: a geographic configuration unit to receive roaming indications from a cellular telephone and to process said indications to determine a location associated with said telephone; a recognition manager to select associated search information as a function of said location; and a speech recognition unit to utilize said selected associated search information when recognizing at least one incoming speech signal, the speech recognition unit utilizing the associated search information as hard constraints, the associated search information identifying hard and soft constraints and the speech recognition unit employing the identified hard constraints for recognizing spoken telephone digits in the incoming speech signal, such that the speech recognition unit: determines, based on the determined location, an expected speech pattern indicative of grouping of digits and placement of pauses in the incoming speech signal; and derives the soft constraints limiting an expected entered telephone number defined by the spoken telephone digits.