How to avoid being flagged as spam?
The prevention guide to keep your numbers clean.
Short Answer: The 80-3-48 Rule
Max calls/day/number
Minimum numbers in rotation
Rest/week/number
The 6 Golden Rules of Prevention
Controlled Volume
Never exceed 80 calls/day/number in standard B2B. Divide by 2 for sensitive sectors.
Active Rotation
Minimum 3 numbers in rotation. Switch every 2-4 hours depending on your volume.
Timing Respected
Call between 9am-12pm and 2pm-6pm on weekdays. Never on Sunday, never during meals.
Pickup Priority
Aim for a pickup rate > 25%. Below 15%, you are in the danger zone.
Preventive Rest
Let a number rest 48h/week minimum. That's the price of longevity.
Continuous Monitoring
Check your numbers at least once/week. A problem detected early = a number saved.
Safety Thresholds by Sector
| Sector | Max Calls/Day | Min. Numbers | Risk Level |
|---|---|---|---|
| Standard B2B (IT, Services) | 80-100 | 3 | LOW |
| Insurance / Real Estate | 50-70 | 5 | MODERATE |
| Telecom / Fiber | 40-60 | 6 | HIGH |
| Energy Renovation / CPF / Real Estate Prospecting | 30-50 | 10+ | CRITICAL |
Recommended vs Prohibited Hours
Green Zones
- 9:00 AM - 12:00 PM (Optimal morning)
- 2:00 PM - 6:00 PM (Optimal afternoon)
- Tuesday, Wednesday, Thursday
Red Zones
- 12:00 PM - 2:00 PM (Lunch break)
- 7:00 PM - 9:00 PM (Dinner / Evening)
- Saturday afternoon, Sunday
Fatal Mistakes to Avoid
Calling non-consenting lists
Immediate reporting by irritated recipients.
Calling back the same number 5x
Harassment behavior detected by algorithms.
Ignoring "No thanks"
Every unhappy prospect = a potential reporter.
Burst calls (200 in 10 min)
Robot pattern detected, immediate network block.
One single number for everything
When it burns, you lose 100% of your capacity.
Never checking your numbers
You're calling into the void without knowing it.
Pre-Campaign Checklist
Preventive Rest Protocol
| Situation | Score | Recommended Action |
|---|---|---|
| Normal usage | 0-30% | 48h rest/week (preventive) |
| Vigilance | 30-70% | Reduce volume, monitor |
| Nuisance detected | 70-80% | 15 days complete rest |
| Confirmed negative | 80-90% | 30 days complete rest |
| Spam / Fraud | 90%+ | Change the number |
Prevention Questions
How many max calls per day per number?
Is number rotation enough?
Are mobile numbers (06/07) better protected?
Should certain prefixes be avoided?
Is the weekend riskier?
Prevention is better than cure.
HUHU.FR - MONITOR BEFORE IT'S TOO LATE