Back Up 3CX to Backblaze B2, Across Every Customer
Controvo Backup Manager sends 3CX backups to Backblaze B2, confirms each one, and shows what every customer uses.
Can You Back Up 3CX to Backblaze B2?
Backblaze B2 is a widely used S3-compatible object store. Controvo has validated it with real 3CX backups. 3CX doesn’t list it as a built-in backup destination, so partners have relied on workarounds. Backup Manager removes the workaround: connect Backblaze B2 once, choose the phone systems that use it, and 3CX backups from every customer go there.
See the full Backup Manager page for every supported provider, or the comparison of ways to back up 3CX to Wasabi, Backblaze B2 and S3.
Last updated November 2026.
What You Get With Backblaze B2
Confirmed Backups
Every backup shows Confirmed, or Failed with the reason 3CX gave.
Usage Per Customer
See what each customer stores in Backblaze B2, with a growth chart and 90-day projection.
Advanced Retention Policies
Delete by age, keep the newest few, preview first, then schedule it.
3CX Backup to Backblaze B2 FAQs
Can 3CX back up to Backblaze B2?
Not as a built-in 3CX destination. With Controvo Backup Manager, yes: you add a Backblaze B2 connection once and choose the phone systems that use it. Backblaze B2 is validated with real 3CX backups.
How do I set up 3CX backups to Backblaze B2?
In Controvo, go to Tools, then Backup Manager, and add a Backblaze B2 storage connection. Follow the short setup page to decide how each customer's data is organized, match buckets to customers, and choose the phone systems that use it.
Can I see how much Backblaze B2 storage each customer uses?
Yes. Backup Manager shows usage per customer, matched to their phone systems, with a growth chart and a 90-day projection.
How do I know a backup to Backblaze B2 actually arrived?
Backup Manager tracks each backup until the phone system confirms it. Every job shows Confirmed, or Failed with the reason 3CX gave.
Can I delete old 3CX backups in Backblaze B2 automatically?
Yes. Advanced retention policies (Clean Up) delete by age, keep the newest few, and can keep the newest backup of each 3CX version. You preview what will be deleted and kept before it runs, then schedule it.
Send your 3CX backups to Backblaze B2
Open Backup Manager in Controvo, or talk to us about your setup.