To update PBXware:

1. Login to PBXware using SSH protocol

2. Navigate to the 'pbxware' directory 'cd /opt/pbxware/'

3. Execute 'sh/update'

4. Provide password 'update'

NOTE: Trapping signals are supported. For example 'CTRL + C' can be pressed at any time to stop the update process. If the httpd/http folder is missing, it will be downloaded automatically.