This software updater resolves a known compatibility issue with some 64K SIM cards that cause your Treo 650's pre-programmed voicemail number to become corrupted or erased. When you tap on the voicemail icon, respond to a voicemail notification, press and hold the "1" key or access Voicemail from the Favorites menu, you may experience one of these conditions: You can't access voicemail; You're connected with an unrelated long distance operator instead of voicemail; You are prompted to enter your voicemail number after the Treo 650 resets itself; You may have requested Cingular Wireless to send an over-the-air (OTA) message to reset your voicemail number, and it may have worked for a short period but then become corrupted or erased again. The Treo 650 Voicemail Updater 1.04 resolves this incompatibility and restores your voicemail settings to working order. After the update, you should not have problems accessing your carrier voicemail through the methods mentioned above.

Warning: The Treo 650 Voicemail Updater 1.04 will upgrade the firmware in your device's radio and erase all data. Please make sure your battery is fully charged or connect the device to the charger before beginning the firmward upgrade process.