In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Apr 22, 2026 - 01:00 MDT
Update - Reminder of upcoming IP changes
Apr 22, 2026 01:00-04:00 MDT
Update - We will be undergoing scheduled maintenance during this time.
Apr 22, 2026 01:00-04:00 MDT
Scheduled - IMPORTANT:
This event will introduce new IPs for interfaces using ZOLL's Remote Downloader.
Interfaces using Redox are not affected.

For continuity of Remote Downloader interfaces:
* If you use DNS/URL-based allow listing, whitelist FQDN *.emscharts.com
* If you whitelist IPs, get the current list via command prompt by entering "nslookup whitelist.emscharts.com". This will always reflect the current required IP addresses.

Start: Wed April 22, 2026, 3:00 AM ET
End: Wed April 22, 2026, 6:00 AM ET

Remote Downloader users, please:
* Implement any required IP whitelist changes before April 22.
* Restart your interface after the scheduled maintenance has ended.

Thank you,
The ZOLL Data Systems Team

Apr 22, 2026 01:00-04:00 MDT

About This Site

Welcome to ZOLLOnline Status Page. Here, you'll find timely updates on the operational status of ZOLLOnline Application Services—ensuring users have the real-time information needed for your critical work.

ZOLL AR Boost Operational
All Services - ZOLL AR Boost Operational
RescueNet Billing Pro Operational
Claim Status Operational
Demographic Verifier Operational
Insurance Verifier/Insurance Discovery Operational
Prior Authorization Operational
Self-Pay Analyzer Operational
AR Boost API Operational
ZOLL Billing Operational
All Services - ZOLL Billing Operational
NEMSIS Import Operational
Payment Posting Operational
RescueNet Dispatch Integration Operational
Reporting Operational
Insurance and Demographic Services Operational
Claim Submissions Operational
Deductible Monitoring Services Operational
Patient Statements Operational
Automated Remittance/835 downloads Operational
ZOLL Dispatch Operational
All Services - ZOLL Dispatch Operational
ZOLL Respond for ZOLL Dispatch Operational
ZOLL emsCharts Operational
All Services - ZOLL emsCharts Service Operational
Physio EKG Operational
ZOLL EKG Operational
Tempus Pro EKG Operational
Faxing Operational
CAD Import Operational
Analytics Operational
ZOLL emsCharts NOW Operational
ZOLL emsCharts for Windows Operational
ZOLL emsCharts Web Operational
Scheduled Reports Operational
ZOLL Fire Reports Operational
All Services - ZOLL Fire Reports Operational
Analytics Operational
www.zollonline.com Under Maintenance
Website - www.zollonline.com Operational
Application - @Work Operational
RescueNet 12 Lead Operational
RescueNet CaseReview/CodeWriter Operational
RescueNet DeviceDashboard Operational
Application - Insights Operational
Application - Mobile Care Connect Operational
Application - ZOLL Care Exchange Under Maintenance
API - 12-Lead - E-Series Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Apr 22, 2026

Unresolved incident: HL7 IP Changes 4/22/26.

Apr 21, 2026

No incidents reported.

Apr 20, 2026
Resolved - SERVICE RESTORED: ZOLL emsCharts is fully operational. We apologize for any inconvenience. Review underway to prevent recurrence.
Apr 20, 09:08 MDT
Monitoring - MONITORING: ZOLL emsCharts - emsCharts has been restored. We are currently monitoring the environment to ensure continued stability.s. Thanks for standing by.
Apr 20, 08:58 MDT
Identified - ISSUE UPDATE: Cause identified for ZOLL emsCharts, fix in progress. Next update in 30 minutes. Thank you for your patience.
Apr 20, 08:53 MDT
Investigating - ISSUE ALERT: ZOLL emsCharts under investigation. Expect an update within 30 minutes. We value your understanding.
Apr 20, 08:50 MDT
Apr 19, 2026

No incidents reported.

Apr 18, 2026

No incidents reported.

Apr 17, 2026

No incidents reported.

Apr 16, 2026

No incidents reported.

Apr 15, 2026

No incidents reported.

Apr 14, 2026
Resolved - SERVICE RESTORED: ZOLL emsCharts fully operational. This morning during a scheduled release, some users may have experienced brief periods of slowness. The issue was identified and mitigated, and performance returned to normal within approximately 5–10 minutes. The release was paused and will be rescheduled.
Apr 14, 08:00 MDT
Apr 13, 2026

No incidents reported.

Apr 12, 2026

No incidents reported.

Apr 11, 2026

No incidents reported.

Apr 10, 2026

No incidents reported.

Apr 9, 2026

No incidents reported.

Apr 8, 2026

No incidents reported.