A method for a WLAN access point to allocate telephone numbers for use by mobile stations. The access point includes stored data indicating one or more allowed telephone numbers. When a mobile station associated with the access point and acquires an IP address, the mobiles station sends a telephone number allocation-request to the access point, seeking allocation of a particular telephone number for use by the mobile station. If the telephone requested number is one of those allowed, then the access point associates the telephone number with the mobile station. On the other hand, if the requested telephone number is not one of those allowed, then the access point provides the mobile station with a list of the available telephone numbers, to allow a user to select a desired telephone number, and the mobile station may then send a new telephone number allocation-request, seeking allocation of the selected telephone number.