A production campaign should not stop because one phone goes offline. A multi-device setup can balance recipient jobs across selected healthy senders. Round-robin gives each available device work in turn, but battery, signal, SIM balance, Android permissions, and carrier policy still define real capacity. Bartago adds heartbeat visibility, FCM pings, queue claims, and per-device logs; it does not bypass an operator limit.
Create a device-readiness gate
Connected does not always mean ready
Check the last heartbeat, FCM token, SMS permission, background capability, battery, and recent failures. Ping selected devices before starting a campaign and exclude stale senders.
Understand round-robin capacity
Fair distribution is not guaranteed throughput
Healthy devices A, B, and C claim work in turn. If a device leases a job and disappears, the job can return through a bounded retry or failover path. Claim leases and idempotent logs are essential to prevent duplicate sends.
- Explicit device selection
- Health freshness threshold
- Per-device frequency
- Lease timeout
- Duplicate guard
Plan failure and disconnection
Control the fleet from either end
Disconnecting from the web or app should stop new claims and preserve an audit trail for in-flight work. Repeated permission or carrier failures should create a device alert rather than blind retries against the recipient.
Practical checklist
- All devices pinged
- Permissions green
- SIM capacity understood
- Frequency configured
- Failover tested
- Per-device report
Key takeaway
Round-robin distributes load; reliable sending comes from health gates, leases, and duplicate protection.
Final thoughts
Run a small campaign on two test devices, then deliberately take one offline. Increase the production fleet only after queue recovery, duplicate protection, and per-device reporting behave as expected. Review each SIM plan and carrier acceptable-use policy separately.
Verify consent, provider or carrier policy, and current applicable requirements before launching a campaign.
Start with 100 free automation credits →Common questions
Does round-robin make SMS faster?
More healthy devices may add capacity, but carrier limits, configured frequency, and device state still control throughput.
What happens after a device disconnects?
It stops claiming new work; leased jobs recover according to the timeout and retry policy.
Sources and editorial note
Last editorial review: August 1, 2026. Legal and policy sections are general information, not legal advice. Verify current requirements with official sources and a qualified adviser.