I ran a VICIdial box once for a client with four seats. It worked, for two years, without a major incident. It also ate most of my Saturdays, and I remember that more clearly than I remember it working.
That is the honest version of the VICIdial conversation. It is not a bad product. It is arguably the most capable open-source dialer in existence, and for a certain size of operation it is the correct answer. But “free software” and “free to run” are different things, and most of the people searching for a VICIdial alternative are not looking for more capability. They are looking for fewer Saturdays.
This piece is about where that line falls, and it is written by someone who sells the alternative, so weigh it accordingly. I have marked the parts where VICIdial wins outright.
What VICIdial actually gets right
Start here, because a comparison that skips it is not a comparison.
VICIdial has been in development since 2008 and it shows. The depth is genuinely unusual: inbound and outbound blended on the same campaign, a hopper with real tuning, adaptive dial levels, timezone-aware dialing, answering machine detection, scripting and DNC handling, per-campaign and per-list reporting, and an API that will do more or less anything you can describe. There is a manager manual that reads like documentation rather than marketing, an active forum, and a Vicibox installer that gets a working system up without compiling anything by hand.
Two things matter more than the feature list. The licence is GPL, so you can read the code, modify it, and never pay anyone for the privilege. And the data is yours: the database is on your server, in a schema you can query directly. If a vendor goes under or decides to triple your renewal, nothing happens to you.
For a call centre of fifty seats with an operations person who knows Asterisk, that combination is close to unbeatable on value.
Where small teams hit the wall
The trouble starts when you are three to twenty seats and nobody on staff is an Asterisk person.
VICIdial is not one program. It is Asterisk, MySQL, Apache, Perl and a large PHP application, plus the configuration that ties them together. That stack has to be installed, hardened, backed up, upgraded and monitored. When a campaign drops calls or a ratio misbehaves at 7pm on a Friday, somebody has to be able to log in and read the logs. If that somebody is a support contract, fine. If it is you, you have just hired yourself for a job you did not apply for.
The second friction point is setup tempo. VICIdial rewards patience. A new campaign means lists, fields, phone codes, dispositions, user groups, carrier routes and dial level strategy. Do it properly and it is a weekend. Do it in a hurry and you get a ratio that burns through your list at 4% answer rates and gets your caller ID flagged, which is a thing that happens to VICIdial users often enough that it has its own forum threads.
“Free” has a price, so do the arithmetic
Here is the calculation I would run before choosing anything. Eight agents, four or five concurrent lines, a team with no in-house Linux person.
Year one, eight agents, four to five lines
Software and server only. Your carrier and minutes are separate in every row.
Assume $60 a seat for a hosted VICIdial host, $40 a month for a VPS, and six hours a month of configuration and maintenance at $20 an hour. Drop the labour and self-hosting looks unbeatable. Charge for it and the gap to a hosted product mostly closes.
That third bar is the one everybody argues about, so let me be fair to it. If you genuinely enjoy the work, or if there is already someone on payroll who does it, then your marginal cost really is the server bill and self-hosted VICIdial is cheaper than anything I sell. That is a real scenario and it is not rare. It is just not the same as free.
The other thing the chart hides is risk. A VPS with an unpatched Asterisk and an exposed admin interface is a target. If nobody owns the upgrade calendar, nobody owns the consequences either.
The three routes, side by side
| Self-hosted VICIdial | Hosted VICIdial | Ecsow | |
|---|---|---|---|
| Software cost | $0 licence | ~$50–75 / seat / mo | $10–100 / mo by line |
| Who runs it | you | the host | you, about 10 minutes |
| Time to first live call | days to weeks | days | one afternoon |
| Inbound / blended | yes, deeply | yes | no |
| Inbound IVR | yes | yes | no |
| Can you edit the source | yes, GPL | usually no | no |
| Who holds the lead data | you | the host | your Windows PC |
| Client OS | browser | browser | Windows desktop |
| Practice management at scale | excellent | excellent | fine for 3–30 seats |
What actually survives a migration
The fear people have is losing their list and their history. Usually they do not.
- Lead lists. VICIdial exports CSV all day. You clean the columns, import into Ecsow with a CSV or Excel file, done. Custom fields map across; anything with a leading zero needs formatting as text or you will lose it, which is the single most common import mistake I see.
- Call recordings. They are just files. Download them, keep them, and match by contact number or a unique lead ID.
- Dispositions and callbacks. These export too. Historical reporting does not travel perfectly, because the two systems count some things differently, but the operational data does.
- Your SIP trunk. Unchanged. That is the point of both products.
- Your agent scripts. Rewritten, not migrated. Scripts are cheap to redo and usually improve on the second pass.
Moving one campaign over, in six steps
- Pick one campaign. Not the biggest one. Pick the one that is boring.
- Export the list as CSV, clean the phone column, re-import it as plain text formatting.
- Point Ecsow at the SIP credentials you already use.
- Set the number of concurrent lines to something sensible for the seat count — five for twelve agents is a normal starting point.
- Run it for two weeks alongside your existing setup if you can, and let the same agents work both. Their opinion matters more than yours.
- Compare connect rates and talk time per hour, not features. Then decide.
Where Ecsow is worse than VICIdial
This is the part most comparison pages skip, and it is the reason some people should stay exactly where they are.
- No inbound. No IVR, no queue, no blended campaigns. If any meaningful share of your volume is inbound, VICIdial wins and it is not close.
- You cannot modify it. VICIdial is GPL. Ecsow is closed. If your business runs on a custom disposition workflow that someone patched into the source, that patch does not travel.
- 32 concurrent lines is the ceiling. The largest licence is 32 lines, which covers roughly 100 agents. If you are building past that, VICIdial’s ceiling is higher and its per-seat economics start to make sense again.
- No API depth. VICIdial’s API will do things Ecsow’s will not. If you drive campaign changes programmatically from another system, check carefully whether we fit.
- Windows only, as always. VICIdial runs in a browser on anything.
- Reporting is narrower. Per-campaign and per-agent reporting, not the analytical depth of a system built around a queryable database.
When you should simply stay on VICIdial
I mean this. Stay if any of these is true.
- You have someone in-house who administers it and does not resent it.
- You need inbound or blended calling in any serious proportion.
- You have custom code in the source and no appetite to rebuild it.
- You are running more than roughly 30 concurrent lines.
- You have a compliance obligation that requires you to hold everything on infrastructure you control.
And switch if the opposite is true: you are between three and thirty seats on outbound only, you do not want to run a Linux server, and your current bottleneck is that nobody wants to touch the dialer between campaigns.
Run one campaign and find out
Download Ecsow Auto Dialer and put a single small campaign through it — up to 20 contacts in the trial, no card, about ten minutes to install on a Windows PC. It will either make your case or make VICIdial’s. Licences start at $10 a month for one line, with a 15-day refund if it turns out I have oversold it. If you would rather see the per-seat arithmetic first, the cost breakdown has it.
Things people ask before switching
Is VICIdial free?
The software is free and GPL-licensed. Running it is not. You need a server, an Asterisk-literate person to install and maintain it, and time to configure each campaign — which is why “free” and “cheap to operate” are different claims.
How long does a migration take?
One campaign on one dialect usually takes about half a day to configure and two weeks to trust. Lists and recordings migrate cleanly; historical reports do not, because the two systems count some metrics differently.
Will I lose my call recordings?
No. VICIdial recordings are ordinary files on your server. Download them before you decommission anything and match them to contacts by phone number or lead ID.
Can I run both at once?
Yes, and it is what I would do. Keep VICIdial running while you test the alternative on one campaign. Running them side by side for two weeks costs nothing and removes the guesswork.