Fix device MAC address imports not normalizing.
# Context
MAC addresses were not being normalized when importing CSV files. If it is not normalized you can get a not found error when provisioning since that is checking the database with a normalized MAC address
# Overview
- Use the same normalization done in device_edit.php in device_imports.php
Grandstream: Hide BLF Remote Status And More Distinctive Ring
Hide the other connected party on the BLF of supported phones. When not hidden a busy BLF will show the other connected party/sttaus of the call by flashing back and forth between the BLF label and the caller ID.
It also impacts the park buttons, but they typically only show the word "park" because of the character limitations.
Also did more effective find/replace for the distnctive ring variables with regex! (plus a typo was made in the previous version)
Hide the other connected party on the BLF of supported phones. When not hidden a busy BLF will show the other connected party/sttaus of the call by flashing back and forth between the BLF label and the caller ID.
It also impacts the park buttons, but they typically only show the word "park" because of the character limitations.
Also did more effective find/replace for the distnctive ring variables with regex!
Support enabling nway conference with Grandstream phones if nway_conference is set to true. If it is not true, it sets the conference URI back to blank to restore local conference
Grandstream template updates to support plantronics EHS via grandstream_headset_type and grandstream_headset_key_mode variables.
Also updated wallpaper and screensaver if/else statements to leave out the variables if they are not defined instead of clobbering the user setting. If you want to mandate a certain setting, just set the variable. If the variable is unset it will not overwrite on provision and allow the previous setting to remain.
Track whether or not a message was actually left in the voicemail box. Previously we only knew that voicemail answered, now we know whether the caller left a message.
Callers who didn't leave a message now show up in the "Cancelled" call filter in xml_cdr.php
Bonus: Fixed a bug with the originating_leg_uuid that was breaking extension summary from a previous commit and some other minor bugs/typos.