Support for change of numbers

摘要

A method for routing calls to telephony devices when the telephone numbers used to identify the telephony devices have been converted from an old numbering scheme to a new numbering scheme. The method includes the steps of: receiving a call request for one of the telephony devices; examining at least a portion of a telephone number in the call request to determine whether one or more digits correspond to an old series of telephone numbers having a first numbering scheme that have been converted to a second numbering scheme; and, if the telephone number corresponds to a telephone number that has been changed to the second numbering scheme: i) determining the one or more digits to be appended to the telephone number to convert it to the second numbering scheme; ii) appending the one or more digits to the telephone number to obtain a now telephone number for the telephony device; and completing the call request using the new telephone number.