Turk Telekom, with Huawei, conducted a live test on the 5G test network, reaching speeds above 2.9 Gbps per second, setting the world...

What is the meaning of Sip 500 Server Internal Error? Sip-500 means Server Internal Error. While tracking traffic if you receive this...

Everybody is waiting for Black Friday to buy a phone with the best features for the cheapest price. But there are a lot of models in the...

If you have problems with your website's traffic and visibility on Google searches, you need to define the problem, develop solutions and...

Throughout 2019, VoIP Industry continued to grow rapidly and added even more value to the business and social life. For personal or...

After a very busy year for the VoIP, telecom sector and us, we have an upcoming year. During 2019, we attended many conferences around...

Like every year, Google has announced yearly trends. 2019 Year in Search shows that people look for heroes on Google. Google tells this...

Today we will talk about one of the most important issues of VoIP, PDD, in other words Post Dial Delay. PDD is one of the main reasons...

In our VoIP guide, today's subject is ASR, Average Success Rate. In this article you will find detailed information about why ASR may be...

Sigma Telecom provides high quality service to its customers in the field of SMS as well as VoIP. Here are 10 reasons for you to work...

We are about to finish the first month of 2020, full of new targets while leaving 2019 behind. When we take a look at the past year, we...

If you see low ACD values in your VoIP traffic and ask why are average call duration values ​​low in my VoIP traffic, then you have to...

We are social, as one of the world's leading creative agencies, and Hootsuite as one of the leading social media softwares, published the...

At GCCM London, one of the largest telecom conferences in the world, our CEO Musa Rad made an interview for GCCM Magazine that shed light...

The traditional ways of marketing almost have come to an end. Different types of marketing ways such as Digital Marketing or SMS...

It's a fact that there is a bid competence in 5G technology worldwide. Many operators launched their 5G service for a small percentage of...

5G mobile internet of the mobile operators is still at the testing phase in majority of the world. Infrastructure work for this super...

As you know from our previous articles, VoIP, is the transfer of the voice packages via the internet, turning analog signals to digital....

Nowadays the world is busy fighting the Covid-19 virus and personal precaution is the most important issue to stop the spreading of the...

SIP Errors is the topic of the day in Sigma Telecom Ultimate VoIP Guide. If you get errors about Sip-484 and Sip-500 and don't know what...