Patent ID: 8032122

Claim:
A method for provisioning a mobile device for visual voicemail (VVM) service in a wireless communications network, the method comprising: receiving a first message at a first message server, the first message comprising a mobile subscriber integrated service digital network (MSISDN) number, wherein: the first message is generated by the mobile device automatically in response to a new subscriber identity module (SIM) being detected upon insertion into a SIM interface of the mobile device; and the first message is sent by the mobile device to a location register whereat the MSISDN number is appended to the first message prior to the location register forwarding the first message to the first message server; the first message server querying a subscriber database to determine a voicemail system (VMS) to serve a subscriber identified by the MSISDN; receiving, at the first message server, from the subscriber database an Internet protocol (IP) address for the VMS; the first message server directing a subscriber voicemail class of service (VM COS) query to the IP address to retrieve a VM COS for the subscriber from the VMS; and in response to receiving the VM COS for the subscriber from the VMS, the first message server delivering the VM COS to a second message server for delivery to the mobile device.