I have been trying to reinstall vm module ,but it looks like it is not possible.
The problem I have it is regarding all 5 Polycom 501. Every time I would like to listen a message by *97 I hear “You have” and hang up.
This is happening from each IP phone so the problem is in config and global.
You might be on the forked version of FreePBX (ChainedPBX? RottenForkPBX?) - If that is the case, you will have to talk to Andrew over at trixbox.org - they are determined to keep that crappy port no matter what. Post what version of trix and we can proceed.