IT Alerting

Stay ahead of critical IT issues and minimize unexpected downtime with SIGNL4

  • RTrusted by 1,000+ customers globally
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  • RUp and running in 5 minutes
Mobile Alerting App SIGNL4

How it works

What is IT Alerting?

Knowing about IT incidents as fast as possible is key in 24/7 IT Operations & Service Management. Especially during out-of-business hours. However, critical incidents or IT problems are often communicated poorly, e.g. by email or without a sense of ownership or responsibilities.

Modern IT Alerting helps by delivering alerts and incidents directly and automatically from your IT monitoring or ITSM systems to the right people using multiple notification channels, with tracking and escalations and built-in duty scheduling.

SIGNL4 Overview

SIGNL4 is a cloud platform for advanced IT alerting.

Mobile Alerting and Anywhere Incident Management
Alert Notifications

Never miss an alert

Reliable Alerting

SIGNL4 notifies by app push, text or voice calls with tracking, acknowledgements and automated escalations. Fully automated and targeted alert notifications ensure alerts get to responsible IT engineers on duty/on call.

The modern way

Mobile App

SIGNL4 comes with a unique mobile app for anyhwere alert management and duty management, taking IT incident management to a whole new level. 

Dashboard SIGNL4 Mobile App

Scheduling built-in

Oncall Scheduling

SIGNL4 provides integrated, easy to use on-call scheduling. It provides for automated routing of critical alerts to staff on duty. All you need is your browser to schedule your team’s availabilities.

After-business hours hotline

Live Call Routing

With SIGNL4 you can establish an after-hours service desk hotline to handle user calls. SIGNL4 forwards incoming calls directly to the on-call staff or provides a voice mailbox with reliable alerting of the on-call staff. They can listen to recorded voice messages in the SIGNL4 mobile app and call back if needed.

SIGNL4 Integrations

Seamless connectivity

Integrations and APIs

Integrates with any ITOM and ITSM system via Email, Webhook, REST and 2-way connectors. Consolidates events and alerts from multiple sources in IT.  175+ tested and verified integrations.

Streamlines IT services and ITIL processes


SIGNL4 leads to an up to 10x faster response over manual notification processes through its reliable and effective alerting. Unexpected downtimes of critical systems are minimized, often more than 50%. Alert noise and false alerts are reduced by up to 95%.

SIGNL4 Benefits

A proven solution

Our customers

SIGNL4 has over 1,000 customers in Europe, North America and other regions. SIGNL4 rates 4-5 stars in app stores and on review sites like Capterra, GetApp and G2.

“We’ve been using SIGNL4 as part of Melrose Labs cloud services operations and it’s been fantastic! SIGNL4 is an incredible mobile alerting SaaS that’s supercharged our response capabilities. With SIGNL4, critical alerts are sent directly to our team’s mobile devices, allowing for a swift and efficient response to urgent issues. The difference it makes in speed and reliability is outstanding, with up to a 10x faster response to critical incidents. Kudos to SIGNL4 for such a powerful tool!”

Mark Hay

Founder & CEO, Melrose Labs

Next Steps

Learn more about SIGNL4 and start your free 30-days trial

IT Alerting Related Blogposts

Mobile Alerts for Icinga at Net at Work

Mobile Alerts for Icinga at Net at Work

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Joe’s Triumph with an Alert Fatigue Solution

Joe’s Triumph with an Alert Fatigue Solution

In the fast-paced world of operations management, every alert bears weight, and Joe's team found themselves caught in a relentless stream of notifications. The challenge they faced was alert fatigue – a persistent obstacle that blurred the lines between critical...

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