Subject: Grandstream UCM System Event
From: GX-PBX-REPORT <[email-masked]>
To: <[email-masked]>, <[email-masked]>, <[email-masked]>
Date: Sat Sep 2 12:38:57 2017

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

SIP trunk register failed! provider name is: RoomerCommpeak, host is: singapore.sip.commpeak.com, username is: roomerhappens