Introduction
If you’re tired of chasing unresponsive emails, you’re not alone. Phone outreach is making a strong comeback — especially with the rise of WhatsApp and personalized calling campaigns.
But where do you get quality direct phone numbers of your prospects?
In this case study, we’ll show how a fast-growing startup used RS Phone Prospector to scrape 10,000 phone numbers in just 2 weeks from LinkedIn and other social platforms — all in real time and without logging in to any platform.
The Challenge: No Reliable Phone Leads
A SaaS startup offering HR automation tools was scaling fast. Their email outreach was getting low open rates, and they wanted to try WhatsApp and SMS-based campaigns instead.
Problems they faced:
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No reliable source for quality phone numbers
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Bought databases were outdated or irrelevant
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Manual scraping was slow and risky
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Needed mobile numbers, not just landlines
The Solution: RS Email & Phone Prospector
Our software helped them solve all of that — fast.
Using keyword-targeted bulk searches like:
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“HR Manager Bengaluru from LinkedIn”
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“Talent Acquisition Mumbai from LinkedIn”
They were able to run 100+ searches at a time, targeting job titles, cities, and industries. RS Email & Phone Prospector scraped numbers in real time without logging into LinkedIn or using any risky browser extensions.
How It Worked
✅ Step 1: Upload up to 100 keyword combinations
✅ Step 2: RS Phone Prospector scraped real-time data from public web sources
✅ Step 3: Numbers were extracted real-time and exported into a spreadsheet
✅ Step 4: Integrated with Twilio & WhatsApp Business API for automation
Results in 14 Days
📈 Leads Extracted: 10,422 phone numbers
📞 Direct Mobile Numbers: 8,930
📬 WhatsApp Campaign Response Rate: 27%
🧑💻 Sales Demos Booked: 167
💸 Conversion to Paid Users: 43
Revenue Impact: +18% increase in MRR (Monthly Recurring Revenue)

Why It Worked So Well
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No login needed for social platforms
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Super-fast bulk search (up to 100 keywords)
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High accuracy for mobile numbers
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Supports call, SMS, and WhatsApp outreach
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Data is always fresh and sourced in real time
Ready to Try It Yourself?
You can start with a free trial, or watch a live demo to see how it works. If you’ve been relying on outdated phone databases or slow scraping tools, this will change the game.