About 50% of the 350 provider entries in the Pre's Carrier database do not have a voice mail number. Manually entering that number in the CarrierDB makes the 1 short key working. Perhaps a next version of the phone prefs will allow setting that number? (Like manual setting of the APN for 2G/3G is now supported in webOS 1.3.1 )
There is one exception. If manual settings in phone prefs is activated before the voicemail number is entered manually in the CarrierDB, a change of that field will not copied to the manual settings DB, I found. Manual setting apparently copies the complete record of the current provider as an override in PalmDatabase.db3.see
manual setting in palm DB. In this case the PalmDB has to be updated too! I have published the SQL statements at
http://forums.precentral.net/palm-pr...ml#post2046475