Update voicemail.rst

source/applications/voicemail.rst

@@ -82,7 +82,7 @@ Click the link above for setting up email server settings.  These are the settin
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 
-Using switch variables provides the ability to adjust FusionPBX Voicemail features. These variables can be set in either Advanced -> Variables (for a global scope) or in the dialplan (for a global *or* more flexible/specific scope).
+Using switch variables provides the ability to adjust FusionPBX Voicemail features. These variables can be set in either Advanced -> Variables (having a global scope - loaded when the switch first starts) or in the dialplan (for a global *or* more flexible/domain specific scope).
 
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