A visual voicemail message may be generated and/or rendered and provided to a mobile device in a format determined based on a characteristic. For example, an identifier of a mobile device may be received. Upon receipt of the mobile device identifier, a characteristic such as a type, a brand, a model, a firmware version, or the like that may indicate a particular format and/or message type capable of being received and/or displayed by the mobile device may be determined. A visual voicemail message may then be generated and/or rendered in the particular format and provided to the mobile device.