SMS Providers
Twilio — global coverage, short codes/alpha IDs. Vonage (Nexmo) — strong international routes. Sinch — high‑volume throughput and compliance tooling.
Providers
Twilio
Global coverage, short codes/alpha IDs
- Global coverage
- Short codes/alpha IDs
- High-volume throughput
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Vonage (Nexmo)
Strong international routes
- International routes
- Good failover
- Cross-border campaigns
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Sinch
High‑volume throughput and compliance tooling
- Carrier-grade messaging
- Campaign registration
- Throughput management
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Use cases
Time‑critical turn‑out reminders
Send urgent reminders for voting and events
Shift confirmations for volunteers
Confirm volunteer shifts and assignments
Two‑way replies for local organizers
Enable two-way communication with organizers
Compliance & throughput
Opt‑in/out handling
A2P 10DLC (US) support
Rate limits
Quiet hours