So your integration doesn't work either?
Previously ran into this problem 6 months ago using 7 digit SMDI. After finding a customer using 10 digit SMDI, I discovered simply changing the 7s to 10s works. If I remember correctly, 7 digit was Fujitsu's default, but if you were trying to implement outside trunk ANI in Viewmail, you needed to switch to 10 digits. I seem to also remember this did odd things to subscriber to subscriber messaging, if ANI and extension numbers conflict. Good luck.
Assuming 4 digit PBX extensions and 10 digit SMDI extensions, you must edit the Serial_Fujitsu.ini file as follows:
If you are stunting direct transfers to the voicemail server using forwarded 5 digit virtual lines on the 9600, you need to use Extension Remapping on the server.
Where actual MLDTs / SLTs are 1XXX, virtual lines are 31XXX, use remapping entries 31* and 1*.