vs 3CX — PBX with light dialer vs dedicated VICIdial

3CX is a SIP-based IP PBX — popular in small businesses, generally licensed by simultaneous-call count, deployed on-prem or in a cloud you run. It has call-center features tacked on (queues, wallboards, basic dialer). VICIdial is the opposite shape: a dedicated predictive dialer that happens to handle inbound too. Both come up in evaluations because both speak SIP and both have "agents".

Quick summary

| | VICIfast | 3CX | | -------------------------- | -------------------------- | --------------------------- | | Category | Predictive outbound dialer | IP PBX | | Software | VICIdial (open source) | 3CX proprietary | | Hosting | Managed | Self-hosted (or 3CX-hosted) | | Licensing | Per server | Per simultaneous call (SC) | | Predictive dialing | Strong | Limited | | Inbound queue management | OK | Strong | | Voicemail + auto-attendant | OK (VICIdial standard) | Strong (3CX core feature) | | Wallboards (inbound) | Floor view tab | Strong (3CX speciality) | | Per-trunk TCPA scrubbing | Yes (BYO BLA key) | No | | BYO SIP carrier | Yes | Yes | | Setup time | Under 60 seconds | Hours (install + license) |

When 3CX wins

• Business PBX is the primary need — your team needs extensions, voicemail, IVR, conference rooms, and a wallboard. The "light dialer" is secondary.
• Mixed-mode operation — 30 office staff with phones + 15 call-center agents on the same system. 3CX makes both work in one install.
• Inbound queue management — 3CX's queue manager + wallboard for support / customer-success teams is genuinely good.
• You want to self-host — 3CX is sold as on-prem or on a server you manage. Managed VICIdial isn't that shape.
• Conferences + auto-attendants matter — 3CX is a PBX first; these are core features. VICIdial does them but it's not where the product's depth lives.

When VICIfast wins

• Outbound is the work — predictive dialing, drop SLA, recycling, FCC compliance. 3CX has a dialer feature; VICIdial is the dialer.
• TCPA / FCC compliance posture at scale — per-trunk litigator scrubbing, drop-rate cap enforcement, federal DNC tooling. 3CX leaves that as "configure it yourself".
• Managed not self-hosted — you want someone else patching Asterisk, applying CVE fixes, running daily snapshots. 3CX is something you (or your sysadmin) maintains.
• Per-server pricing — 3CX's per-SC licensing makes the math interesting once you have real concurrency. VICIfast is a flat per-server rate.

The architecture difference

3CX is a PBX with some dialer features bolted on. VICIdial is a dialer with some PBX features bolted on. Different optimisation targets means different ceilings:

| Workload | 3CX | VICIdial | | ---------------------------- | ------- | ----------------------- | | Predictive outbound at scale | Limited | Strong | | Inbound queue management | Strong | OK | | Voicemail / auto-attendant | Strong | OK | | Conference calls | Native | Possible but cumbersome | | TCPA-grade compliance config | Manual | Native + per-trunk |

Pick the tool that's strong at your dominant workload.

Pricing

3CX licensing scales with simultaneous calls — typically $200/year for the 4SC starter, $700–1,500/year for 8–16SC, plus your hosting cost and any setup engineering. A 50-agent call-center deployment is usually $2,000–3,000/year in licensing alone, before hosting.

VICIfast is a flat per-server price. Same server runs 20 or 80 agents; the cost doesn't scale with concurrent calls.

When teams switch from 3CX

The most common case: 3CX was the PBX the company already had, the outbound team grew, the 3CX dialer hit its ceiling, and the FCC compliance work started feeling like reinvention. Moving outbound specifically to VICIfast lets 3CX stay where it belongs — as the company phone system.

When to keep 3CX

• Primary need is a business phone system.
• Outbound is a secondary workload, not the main thing.
• Your IT team already knows 3CX and you've built around its admin.

3CX is a real product. Pick it when it fits.

Migration

3CX-to-VICIdial migrations for the outbound workload are usually a 1–2 week parallel-run:

• Keep 3CX as your office / inbound PBX
• Stand up VICIfast for outbound
• Point your existing SIP carrier at both (or use a separate trunk for outbound)
• Migrate the outbound campaigns + lead lists into VICIdial admin

The two systems coexist cleanly — different DIDs, different routing, both speaking SIP to your carrier.

Start a 7-day trial → — no card. Test predictive on a real campaign before the 3CX renewal lands.