Bug#279905: dependency issue breaks voicemail setup

[Daniel Pocock]

Package: asterisk

I did the following recently:

 apt-get update ; apt-get install asterisk

and got a new Asterisk.

I then found that my voicemail system wasn't working, messages like this 
were appearing on the console:

Nov  5 20:27:36 WARNING[1155726256]: file.c:475 ast_openstream: File 
vm-advopts does not exist in any format
Nov  5 20:27:36 WARNING[1155726256]: file.c:779 ast_streamfile: Unable 
to open vm-advopts: No such file or directory

The problem is caused because of new files added to the related package 
asterisk-sounds.  The asterisk package doesn't specify the version of 
the asterisk-sounds package that is required.  Therefore, when I updated 
my asterisk package, I still had an old version of asterisk-sounds 
without realising it.

Please correct this so that the asterisk package always depends on the 
matching version of asterisk-sounds