Working with VoIP since 2000, I have lost count of the number of installs, upgrades and modifications I have carried out. I have a positive attitude toward change and learning - ready at anytime to suggest new ideas to get your project done creatively!
  • -13-year experience with VoIP engineering, over 13 years with IP networks
  • -Hands-on with VoIP and telecom equipment, standards and technologies
  • Wide range of successfully deployed VoIP services and applications
  • Strengths in implementation of complex projects paying attention to details
  • Creative problem solver, high degree of initiative
  • Signaling protocols: SIP, H.323, MGCP, ISDN, SS7,R2
  • Soft-Switches: Nextone Cisco OpenSIPS Kamailio Teles Deverto Lucent LCS/Plexus Harris
  • VoIP gateways: Cisco AS-series, Quintum Tenor/CMS, Patton
  • SIP phones: Cisco, Grandstream,Sipura,Snom,Asterisk, Yealink
  • Analytical skills to examine data and provide the most efficient solution

We know what we’re doing because we’ve been doing it for a long time. And we’re good at it, too. As a team, we bring over eighty years of industry-acquired expertise to the table. VoiP System Engineers, Developers, Consultants, and Technical support specialists. At Calliotel, you’ll find it all, done well.


Why deal with multiple companies, when you can work with one? At Calliotel, we cover everything from consulting and engineering to wholesale call routing and VoIP support. Whatever a VoIP business needs, we can provide.


We’re skilled at what we do, but what we really want is to learn from you. For every project, we make it our mission to work with you, to grow with you, and to assist you so that the end product isn’t just what you get, it’s exactly what you wanted.


Because we believe in doing it right the first time. The more we understand the requirements of the task ahead of us, the better equipped we will be to work out all of the custom-designed details in the final needs. While many companies will list for you the different platforms and vendors they develop in–and yes, we do it all–it’s not technology that guarantees successful results. What matters most is listening to clients, knowing how to efficiently develop within a budget, and ultimately custom designing solutions that are both flawless and intuitive. Our experienced team of consultants and developers will design what you need, implement it, test it, and even maintain it. From building VoIP systems to modifying source codes to creating phone applications, we’ll make sure that what we do works for you.


At Calliotel, we offer our clients the very best in service, expertise, and support. Passionate about our work and dedicated to producing innovative, customized solutions for every business we collaborate with, our results speak for themselves. But while our talents are diverse, and our specialties many, our formula for success and longevity is simple: Discover the need. Create the product. Apply it. And evolve. For every project, with every client, we are challenged to see things differently, through a renewed perspective, ensuring that our body of work is always original, inspired, and exceptional.

We are builders. Whatever your business needs, we can construct it, from the ground up. But first we need a blueprint. Calliotel works with clients to discover precisely what they are looking to achieve and how software can best meet those needs.

You have problems configuring something in your VoIP device? You need a custom VoIP feature implemented, and nobody can help you out? You need assistance with Wholesale/ITSP soultions/calling cards/call shop/PBX/pre and post-paid billing/custom Asterisk and OpenSIPS/Kamailio configurations/fax to email, email to fax solutions? You’ve come to the right place!


GET IN TOUCHContact Laszlo

Expert consultation, engineering, development.
20 Bartok Bela street
Budapest, Hungary
+36 1 324 4000
+36 76 404 000

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