Major carriers are shutting down SMS gateways. SigSpan keeps your on-call alerts flowing with a secure, compliant email-to-SMS bridge.
Verizon, AT&T, and T-Mobile are discontinuing their SMS gateway services, leaving IT departments without critical alert notifications. SigSpan provides the secure, compliant alternative you need.
Legacy SMS gateways being discontinued by major carriers
Critical system notifications failing to reach on-call teams
Require enterprise-grade, compliant email-to-SMS bridge
Three steps to replace your retired SMS gateway — no code changes required.
Point your existing alert emails — Nagios, Zabbix, Datadog, PagerDuty, or custom scripts — at your unique SigSpan address.
SigSpan securely receives the email, extracts the alert content, and routes it through enterprise-grade AWS infrastructure.
Your on-call team receives the alert as an SMS — no app install, no internet required, just their phone.
Everything you need to keep alerts flowing — nothing you don't.
Drop-in replacement for retired carrier gateways
Sub-second email-to-SMS processing
KMS encryption, passwordless auth, multi-tenant isolation
Built-in opt-out handling and consent documentation
If it sends email, it works with SigSpan
Pay only for messages sent — no subscriptions or minimums
Uptime
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Monthly Platform Fees
Join IT departments who have already migrated to SigSpan's secure, compliant email-to-SMS bridge platform.