Know instantly when a
phone line goes silent.
Reacher calls your business phone numbers on a schedule, retries on failure, and alerts your team by SMS and email before anyone notices a problem.
How it works
Schedule
Define your phone numbers and how often to check them — from every minute to every 24 hours.
Call
Reacher places an outbound call via Twilio. If it answers, the line is marked UP.
Retry
On failure, Reacher retries 5 times over 5 minutes before declaring the line down.
Alert
Your team receives an SMS and email with the line details, solution, and SIP trunk info.
Everything your team needs
Multi-line monitoring
Monitor any number of phone lines across all your sites and carriers.
Smart retry logic
5 automatic retries with 1-minute delays before an alert is triggered — no false positives.
SMS + email alerts
Each team contact can receive alerts by SMS, email, or both — configurable per notification group.
Recovery notifications
Automatically notified when a line comes back up, with downtime duration included.
Multi-tenant teams
Each team has its own monitors, contacts, and Twilio credentials. Invite members with role-based access.
Full call history
Every call attempt is logged with its outcome and Twilio SID for audit and troubleshooting.
Alert messages that tell you everything
No vague "something is wrong" messages. Every alert includes the line details your team needs to act immediately.
[Reacher] ALERT: "Main Office Line" is NOT answering.
Number: +41998887766
Solution: Cisco UCM Cluster A
SIP Trunk: SIP-TRUNK-GENEVA-01
Last checked: 2026-05-28 14:32 UTC
[Reacher] RECOVERED: "Main Office Line" is answering again.
Number: +41998887766
Solution: Cisco UCM Cluster A
SIP Trunk: SIP-TRUNK-GENEVA-01
Downtime: ~7 minutes
Your lines are either up or they're not.
Stop finding out from customers. Let Reacher tell you first.
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