If you want a text alarm most cell providers provide an email address that sends you the email as a text message. Verizon example: (phone number)@vtext.com. Texts get my attention better than emails.
From: Stu Engelke Lists [mailto:firstname.lastname@example.org]
Sent: Monday, February 05, 2018 5:37 PM
Subject: Re: [CRTech] Audio Monitoring?
Then put EMCO ping monitor on a pc some where and ping the IP connection where the server is and it will email you if there is a problem. Also free for up to 5 hosts.