ABOUT US
Building technology that connects people when it matters most.
We founded SIP Caller to empower organizations to reach their audiences quickly, reliably, and with purpose.
Who we are?
With more than 25 years of experience in the telecommunications industry, our team has been at the forefront of building business telephony solutions that power voice and SMS communications. Over the years, we have designed, deployed, and refined systems that help organizations connect more effectively with their customers. Our founders are recognized leaders in the industry, with backgrounds spanning software development, product management, and team leadership. This combination of technical expertise and strategic vision is what drives SIP Caller forward. At our core, we are passionate about creating reliable, human-centered technology that makes communication seamless.
The People Behind SIP Caller
With decades of combined experience in telecom, software, and product innovation, our team brings the vision and expertise that power SIP Caller.
Ernesto Dos Santos Afonso
Ernesto’s journey in technology began at the age of 10, typing code to create video games on a Commodore 64. He started his professional career as a software developer in 1998 and has never looked back. Over the years, he built software solutions for business telephony, including IVRs and call management systems.
Before founding SIP Caller, Ernesto spent 15 years at 3CX, where he led the development of the Call Flow Designer and all CRM integrations. Working closely with 3CX customers and partners, he saw firsthand the challenges they faced when trying to build a dialer using the CFD, an experience that sparked the creation of SIP Caller.
Gustavo Bouzas
Gustavo’s tech adventure began as a kid, exploring the vibrant world of early personal computers. Driven by curiosity, he taught himself to program and even built his own machines, sparking a lifelong passion for technology.
After earning a degree in Electronic Engineering, Gustavo moved into professional software development, gaining experience building advanced telephony solutions for several major telecom companies. As a co-founder of SIP Caller, he brings together his passion for programming, systems administration, and database engineering to create outbound calling solutions that push the boundaries of what’s possible.
Mariano Piccinni
Mariano Piccinni is a seasoned B2B professional with over two decades of extensive experience in the corporate Information Technology sector, specializing in driving sales, business development, and strategic market expansion. As the Business Development Manager at SIP Caller, he leverages his profound expertise to enhance outbound dialing solutions, empowering businesses with advanced communication technologies.
With a strong foundation in engineering and a Master's in Business Administration, Mariano uniquely blends technical acumen with strategic business insight. He has a distinguished track record of creating significant value for companies across diverse countries.
Mariano excels at developing and executing go-to-market strategies, cultivating strategic partnerships, and leveraging his deep understanding of IT solutions to meet evolving B2B client needs.
Carlos Cattaneo
Carlos is a software architect and engineer with extensive experience designing and developing complex systems, from embedded firmware to distributed platforms, cloud solutions, and AI-powered applications. He is driven by understanding the essence of each problem in order to design simple, clear, and lasting solutions.
That pursuit has taken him across telecommunications, voice technologies, embedded systems, distributed architectures, and AI, building abstractions, frameworks, and tools that make other engineers’ work easier. At SIP Caller, he brings this mindset to the core of the platform, along with a strong commitment to continuous learning, knowledge sharing, and mentorship.
