Call centers: are your numbers blacklisted?
Monitor your lines in real-time and protect your reachability KPIs before your campaigns collapse.
10 cross-checked sources
They trust us
They test their lines with HUHU
- +And many others
The problem
The invisible enemy of your production.
When a number is marked as "Spam" or "Suspicious Call" by anti-spam apps, your chances of contact drop to zero.
- Sharp drop in answer rate (Contact Rate)
- Agents demotivated by voicemails and rejections
- Campaign ROI halved in 48h
of BPO calls filtered by carriers
revenue lost when a number is burnt
pickup rate with HUHU rotation
efficiency gain for supervisors
How it works
3 steps to clean your lines
From import to automatic rotation, we cover the entire pipeline.
Import your numbers
Paste your list, upload a CSV, or push your DIDs via API.
We scan in real time
Your lines are checked against Hiya, Truecaller and Orange Téléphone simultaneously.
You eject the burnt ones
Get the list of numbers to pause, or let the API do it automatically.
Our toolkit
The BPO & Call Centers Solution.
Mass Import
Upload lists of thousands of DIDs in one click.
Learn more →Auto Routines
Cyclic verification every 1h, 4h or 24h.
Learn more →Multi-channel
Immediate Slack, Email or Webhook alerts.
Learn more →Dialer API
Connect Vicidial or GoAutoDial for auto rotation.
Learn more →Supervision
Global dashboard for multiple call floors.
Learn more →API / MCP, your choice
Integrate HUHU via REST API or MCP Server for your AI agents (Claude, Cursor…).
Learn more →Use cases
Use Scenarios
Fleet Audit
Test all your existing DIDs before launching a new wave of calls.
Pre-campaign
Verify your new numbers from carriers before injecting them in production.
Real-time
Permanent monitoring of rotating numbers. Alert as soon as a line 'burns'.
Intelligent Rotation
Use our API to automatically eject blacklisted numbers from your lists.
« Huhu has become our #1 steering tool. Without it, we were literally throwing 20% of our lead budget in the trash for lack of 'clean' numbers. »
Production Manager
Insurance BPO - 150 positions
Are your numbers already burnt?
Check yours in 2 seconds, for free.
Frequently asked questions
BPO FAQ
Can I import massive lists of numbers?
Yes, our platform is designed to process imports of thousands of numbers simultaneously via CSV or API.
Learn more →What API volumes are supported?
Our infrastructure supports up to 100 requests per second for the largest European BPO players.
Learn more →Is it compatible with my current Dialer?
Not plug-and-play yet, but yes: if your Dialer (Vicidial, GoAutoDial, any cloud solution…) can consume a REST API or receive webhooks, we can wire it up. Talk to us — we'll handle the integration with your tech team.
Learn more →Start now
How many of your numbers are already burned?
One number to start, or paste your full list inside the dashboard.