Yes, you can.
If you have VPS_ALLOWED_LOGIN_TYPES in the sametime.ini, you need to append respective value to allow your Notes 9.0.1 to connect to your Sametime 188.8.131.52 community server
i.e If Notes 9.0.1 client (using the embedded Sametime 9.0 client) please append 1299
else append 1298 to the list
Please refer to the following URL link for detail