Sales reps are trained to sell, not to inform. Here is how to evaluate a VoIP provider using only publicly available information, free trials, and your own testing — no sales calls required.
Step 1: Check Their Pricing Page (5 minutes)
| What You See | What It Tells You |
|---|---|
| Clear per-user pricing on website | Transparent company, confident in value |
| "Contact sales for pricing" | They charge different customers different amounts |
| Low price with asterisks | Read the footnotes — add-ons incoming |
| Multiple tiers with feature gating | Basic features locked behind expensive tiers |
Red flag: If a provider hides pricing, they are optimising for maximum revenue per customer, not for customer satisfaction.
Step 2: Read Their Status Page (10 minutes)
Every serious provider has a public status page. Google "[provider name] status page."
| What to Check | Good Sign | Bad Sign |
|---|---|---|
| Incidents in past 12 months | < 5 | > 15 |
| Average resolution time | < 30 minutes | > 2 hours |
| Postmortem quality | Detailed root cause + prevention | "Issue resolved" |
| Status page exists | Yes | No public status page |
No status page = no accountability. If they do not publicly track their uptime, they do not take it seriously.
Step 3: Test Their Support Without Buying (15 minutes)
Call their sales number. But instead of asking about pricing, ask a technical question:
"Hi, I am evaluating VoIP providers. Can you tell me what codec you use by default, and whether you support Opus with forward error correction?"
| Response | What It Tells You |
|---|---|
| Answers immediately and correctly | Technical team is involved in sales |
| Transfers to an engineer who answers | Good — they have engineers available |
| "I will have someone call you back" | Support is slow, even for sales |
| Cannot answer or gives wrong answer | Technical knowledge is shallow |
Step 4: Get a Trial Without a Sales Call (5 minutes)
Go to their website and look for "Free Trial" or "Sign Up." Try to create an account.
| Experience | What It Tells You |
|---|---|
| Self-service signup, instant access | They trust their product |
| "Schedule a demo to get started" | They need a sales pitch before you can try |
| Requires credit card for trial | They plan to charge you if you forget to cancel |
| No trial available | They know the product does not sell itself |
Step 5: Test Call Quality (3 days)
With your trial account, make 20 calls:
- 10 to UK mobiles
- 5 to UK landlines
- 5 to international numbers (if relevant)
Rate each call 1-5:
| Rating | Meaning |
|---|---|
| 5 | Perfect — sounds like being in the same room |
| 4 | Good — clear, no issues |
| 3 | Acceptable — minor artifacts or slight delay |
| 2 | Poor — noticeable quality problems |
| 1 | Unusable — choppy, echo, or drops |
Average below 4.0 = do not proceed.
Step 6: Test the Mobile App (2 days)
Install the app. Use it exclusively for 2 days. Track:
| Metric | How to Test | Pass |
|---|---|---|
| Rings on inbound? | Have someone call you 10 times | 9/10 must ring |
| Quality on 4G? | Make calls away from WiFi | No degradation |
| Battery impact? | Check battery usage after 1 day | < 5% drain |
| Outbound caller ID? | Call your personal mobile | Shows business name |
Step 7: Test the Admin Portal (30 minutes)
Give your least technical colleague the admin login. Ask them to:
- Add a new user (should take < 3 minutes)
- Create a ring group (should take < 5 minutes)
- Change the auto-attendant greeting (should take < 5 minutes)
- Download a call recording (should take < 2 minutes)
If they cannot complete all 4 tasks without calling support, the portal is too complex.
The Scorecard
| Test | Weight | Score (1-5) |
|---|---|---|
| Pricing transparency | 10% | |
| Status page quality | 10% | |
| Support knowledge | 15% | |
| Trial accessibility | 10% | |
| Call quality | 25% | |
| Mobile app | 20% | |
| Admin portal | 10% |
Weighted score above 4.0 = strong provider. Below 3.5 = keep looking.
DialPhone publishes pricing on their website, maintains a public status page, offers self-service trial signup (no credit card, no sales call), and their admin portal is designed for office managers, not IT engineers. Run this evaluation yourself — the product holds up.
