Subject: Grandstream UCM System Event
From: GX-PBX-REPORT <[email-masked]>
To: <[email-masked]>, <[email-masked]>, <[email-masked]>
Date: Tue Sep 5 19:22:09 2017

[Device Mac addr: 00:0B:82:75:F5:B7]

SIP trunk register failed! provider name is: BrightBOX, host is: 192.168.100.10, username is: brighbox