How Snov.io's sales team reclaimed 2 hours a day with Abstract Phone Validation
The problem
Snov.io's sales team processed 8,000+ inbound leads every month. But 18-25% of the phone numbers submitted turned out to be VoIP lines, disposable numbers, or invalid entries. Reps only discovered the issue after dialing, which wasted roughly two hours a day on failed calls and slowed response times to legitimate prospects.
"Our reps were picking up the phone and getting voicemail boxes that didn't exist, or VoIP numbers that rang into nothing." — Atahualpa Maia, VP of Sales, Snov.io
How they built it
The team dropped Abstract's Phone Validation API into their existing n8n workflow. Every inbound lead is now checked for carrier and line type the moment it enters the system, so reps only see numbers that are worth dialing.
What the integration covers:
- Instant carrier detection and line-type classification (mobile, landline, VoIP)
- Format and country validation before the number reaches the CRM
- Automatic flagging of disposable and invalid numbers
- No custom validation logic to build or maintain in-house
"We plugged Abstract into n8n and had phone verification running in production the same afternoon." — Atahualpa Maia, VP of Sales, Snov.io
The results
~2 hours a day back per rep. Time previously lost to failed calls now goes into real conversations.
18-25% of bad numbers caught before dialing. VoIP, disposable, and invalid entries are flagged at lead entry, not at the desk.
8,000+ leads verified every month. Every inbound number is validated automatically inside the existing n8n workflow.
Connect rate improved in the first week. Cleaner pipelines translated into conversations on the first attempt.
What's next
Snov.io is adding Abstract's Email Validation to the same n8n workflow to score both phone and email quality before leads enter the CRM queue.