We Are
Sigma Telecom. Founded in 2003 to provide advanced telecommunication infrastructure services including; optimization, planning and drive testing.
We Do
High quality and exclusive voice and SMS service; provided by our team of experts. Alongside software and mobile solutions; for both iOS and Android platforms.
We Achieved
Connections with over 500 companies globally, 400M+ minutes of voice carried per month, recognized amongst the biggest mobile operators in Turkey and a sector member of International Telecommunication Union (ITU).
Indispensable Values That Describe Us
Values
Diversity
At Sigma, we have a fully dedicated, self-motivated, multi-national team. Hailing from all around the world; bringing new cultures and points of view to our company. This diversity allows us to see things from a wider perspective.
Being A Lifetime Learner
For a Sigma employee, learning is a process that never ends. We know that we have a lot to learn from our partners and each other about business and life itself. For this reason, Sigma Telecom invests in its employees' education to improve its talents and promote lifelong learning.
Innovation
We gain from the combination of our unique diversity and education which leads to our irresistible passion for innovation. We love to use advanced approaches and focus on a variety of aspects to create modern and exciting projects.
Right-Minded
We are fair to our employees, business partners and customers. We care about the relationships that we have. This formula has allowed Sigma Telecom to make long lasting and mutually beneficial business partnerships.
Services
Services that 100% guarantee reliable and lucrative partnerships lead to absolute success. We provide first class telecom services, with 24/7 NOC support. Our added value & continuous support deliver a great experience for our partners and we love to exceed these expectations.
We are connected with 500+ companies globally
Some Of Our Partners
And many more!
We are everywhere. Meet us!
Latest Events
We have a few tips for you.
The Blog
Sip 500 – Server Internal Error – VoIP Sip Codes and Solutions
What is the meaning of Sip 500 Server Internal Error? Sip-500 means Server Internal Error. While tracking traffic if you receive this error code, probably you have a problem with
The New 5G Speed Record by Turk Telekom and Huawei
Turk Telekom, with Huawei, conducted a live test on the 5G test network, reaching speeds above 2.9 Gbps per second, setting the world record in this field 5G speed. For
The Connectivity Index; Internet Connection Experience of The World
Carphone Warehouse made a research about the connectivity map of the world, to define which country is the most connected and has the best internet connection according to some metrics
Three 5G Phone Alternatives that You can Buy in 2019
If you have the intention to buy a new phone nowadays, try to consider the 5G phones in the market which are one step forward with the newest network technology.
How VoIP Works and Devices Suitable for VoIP Technology
VoIP is simply turning the analog signals to digital and transferring those signals between sides. This is the basic definition of Voice Over Internet Protocol. But if we asked how
VoIP Events of the Last Quarter in 2019
We are in the last quarter of the year and 2019 is almost about to finish. We already can say 2019 was very lucrative and beneficial for both the VoIP
VoIP Disconnect Codes – Sip 404 – Sip 403 – The Reasons and Solutions
Welcome to the master class of VoIP business and today's lecture is about Sip disconnect codes: Sip 404 Not Found and Sip 403 Forbidden. To lower the PDD of the
Call Flow Diagram – Screen Detailed Analysis for VoIP
Welcome to the master class of Sigma Telecom and today we are going to take a picture of a call and try to tell you about the flow of a