What it costs to host VICIdial

Hosting VICIdial means running it on a server — either a VPS you rent from a cloud provider or a physical box you own. The cost of that server depends on how many Agents you run and how many Concurrent calls your campaigns generate at peak. Get the server too small and calls fail; get it too large and you overpay for idle capacity. This post walks through what the sizing decisions look like and what they typically cost.

For the full picture of all cost components beyond hosting, see what VICIdial really costs.

How agent count drives server size

VICIdial is an Asterisk-based system. Asterisk processes each active call as a channel consuming CPU and memory. The more calls you run simultaneously, the more CPU and RAM the box needs. Agent count is a proxy for concurrent calls: a team of ten agents in a Predictive dialing campaign might be handling ten to thirty simultaneous channels depending on dial ratio, while a team of a hundred agents needs proportionally more.

As a rough starting point: a small box with two to four CPU cores and four to eight GB of RAM can typically handle around ten agents in a predictive campaign. Scaling to fifty agents usually means stepping up to eight or more cores and sixteen or more GB of RAM. A hundred-agent deployment often needs a dedicated box with sixteen or more cores and thirty-two or more GB of RAM, plus SSD storage for recording files.

Hosting cost by scale

flowchart TD
  A[Agent count] --> B[Small team - up to 10 agents]
  A --> C[Mid-size - 20 to 50 agents]
  A --> D[Large - 50 to 100 agents]
  B --> E[Small VPS - low monthly cost]
  C --> F[Mid-range VPS or dedicated]
  D --> G[Dedicated box - higher monthly cost]
  E --> H[Hosting cost band]
  F --> H
  G --> H

Cloud VPS pricing varies by provider and region, but the pattern is consistent: small boxes for a handful of agents cost a few tens of dollars a month; larger dedicated servers for fifty to a hundred agents run higher, often well into the hundreds of dollars a month depending on the specs and provider.

Self-hosted versus managed hosting

When you self-host, the server cost is just the compute bill. You still need to install VICIdial, secure the box, configure your SIP trunk, and keep the system patched. That labor is separate from the hosting fee and is often larger than the server cost itself, especially at smaller scales where you cannot amortize a sysadmin's time across many servers.

Managed hosting bundles the server and the operational labor into one monthly fee. You do not separately pay a cloud provider and a sysadmin; you pay one bill that covers compute, Provisioning, security hardening, TLS certificate renewal, and uptime monitoring. For many teams, this is a lower total cost even if the monthly fee appears higher than a raw VPS, once honest labor accounting is applied.

Storage: do not overlook recordings

Call recordings consume disk space at a rate that surprises many operators the first time. A busy outbound team generating thousands of minutes per day can accumulate tens of gigabytes of recordings per week. Make sure the server you pick has enough SSD storage for your retention policy, or that your provider has a clear story for adding disk capacity when you need it.

For a breakdown of how per-agent costs work once you know total hosting cost, read the real cost per agent of running VICIdial. To see current managed hosting plans, visit our pricing page.