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Otto Kolbe

An expert in IT Systems Engineering and Cloud Telephony, Otto Kolbe brings over twenty years of systems engineering experience to the table. His extensive 12-year background in VoIP and SIP protocols, bolstered by the prestigious MCSA and MCSE certifications, has established him as an authority in the field of cloud telephony.

Cloud PBX Adds Real-Time Call Quality Monitoring

With this new version, Virtual-Call Cloud PBX moves from beta to general availability, introducing...

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AI Receptionist Architecture: Which Model Fits You?

If your business has already decided to adopt an AI receptionist, the real question isn't, “Does it...

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Cloud PBX for Hotels: Built-In Hotel Management, No Extra Software

Virtual-Call's Cloud PBX includes a native hotel management module that centralizes check-in,...

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USA World Cup 2026: Real 5G for European Fans

The 2026 FIFA World Cup will be the biggest edition in the tournament’s history, drawing millions...

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AI Receptionist: How it works and why it beats the IVR

In 2024, research indicated that 38% of consumers abandoned calls when the automated system failed...

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CRM and phone system integration: how it works in practice

Your sales rep just ended a 12-minute call with a hot prospect. Before moving on, they need to open...

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7 cloud PBX features every business phone system must have

When it's time to choose a cloud PBX, most decision-makers start by comparing prices. That's...

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Voicemail transcription: how it works and why it matters

Have you ever missed a client callback because voicemail messages piled up unheard? Or had to...

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Omnichannel Communication: unify channels, retain more customers

Your customer opened a ticket on WhatsApp. The next day, they sent an email. This morning, they...

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Follow the Sun: One Cloud PBX for Global Operations

Managing telephony in five different countries used to mean five contracts, five suppliers, and...

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