[Asterisk-Dev] Voicemail locking

[Kevin P. Fleming]

Olle E. Johansson wrote:

> With this locking scheme, we can receive multiple messages at the same time.

And we can also end up with a voicemail directory with lots of "missing" 
numbered files. I don't think that's a big issue, but I believe the 
current locking was intended to keep that from happening.

Otherwise, I don't see a reason why that method wouldn't work.