How to Run a VoIP Proof of Concept That Actually Proves Something

Most VoIP POCs prove nothing. The provider sets up a demo environment with 3 phones on a clean network, makes 5 test calls, and declares success. That tells you nothing about how the system performs with 50 users on a real network during peak hours.

Here is how to run a POC that actually predicts whether the deployment will succeed.

The 2-Week POC Framework

Week 1: Real Users, Real Calls

Deploy the system on temporary numbers for 10 users from different departments. They use it for ALL their calls — not just test calls.

Day	What to Track
Mon-Fri	Call quality scores (built-in analytics)
Mon-Fri	Mobile app notification success rate
Mon-Fri	Transfer success/failure
Mon-Fri	CRM auto-logging accuracy
Fri	User satisfaction survey (1-5)

Minimum sample: 200 calls over 5 days. Anything less is statistically meaningless.

Week 2: Stress Testing

Test	How	Pass Criteria
Peak load	All 10 users on calls simultaneously + run speed test	MOS stays above 4.0
WiFi stress	5 users on WiFi softphones simultaneously	No quality degradation
Failover	Disconnect primary internet	Calls route to mobile in < 30 seconds
After hours	Call main number at 9 PM	Routes correctly per after-hours config
CRM integration	Make 50 calls, check CRM logs	100% of calls auto-logged

The POC Scorecard

Metric	Weight	Score (1-5)
Call quality (avg MOS)	30%	4.0+ = 5, 3.5-4.0 = 3, below 3.5 = 1
Mobile app reliability	20%	95%+ notifications = 5, 90-95% = 3, below 90% = 1
CRM integration accuracy	15%	100% logged = 5, 95-99% = 3, below 95% = 1
User satisfaction	20%	4.0+ = 5, 3.0-4.0 = 3, below 3.0 = 1
Admin portal usability	15%	Office manager can do 4/4 tasks = 5, 3/4 = 3, below 3 = 1

Score above 4.0: Deploy with confidence.
Score 3.0-4.0: Address weak areas before full deployment.
Score below 3.0: Choose a different provider.

DialPhone offers a 30-day POC at zero cost. No credit card. No sales pressure. 10 users with full features — run this exact framework and let the data decide.