Stairway to Telecom


Our technology at your service!

We are a multi-country licensed telecom operator and integrator with more than a hundred direct interconnections to landline and mobile operators.

Services provided by our company are identified by trademark NST©. 

Our customers have access to a wide portfolio of services through several technologies: VoIP, PSTN, ISDN, GSM, UMTS and SAT.




NST offers a lot of innovative services for the end user. We open a “new age” for the residential telecommunication! 



Developing a telecom management strategy that balances technology, cost and feasibility is a daunting task. 



A prime telecom leader in its class, NST offers premium A-Z voice termination services to both landline and mobile destinations worldwide. 



Jump Roaming

Why spend a fortune to call your friends and family abroad?

With this service you can make low cost international calls with VOIP by using an internet connection or even via the normal GSM network! Go to the Jump Roaming website to know more about it or send an email to

"TwinAPP" Virtual SIM

This is a smartphone application that offers several services. Specifically, it offers the possibility of having an alternative telephone number (a twin number) made available by NST for making your calls.

This number can be called from anywhere in the world in the same way as any other normal telephone number but it also includes some very special services such as, a black list, selective call forwarding to other numbers and much more!