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 sector and Sigma Telecom. We traveled around the world; we have been in the north, south, west, and east at the same time, met new[…]
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VoIP Events of the Last Quarter in 2019
By sigmatelecom Business, Telecom, VoIP Oct 10, 2019
VoIP Disconnect Codes – Sip 404 – Sip 403 – The Reasons and Solutions
By sigmatelecom sip 403, sip 404, Telecom, VoIP Oct 03, 2019
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 blog, we start the lesson immediately. The meaning of the Sip 404 Not Found The meaning of this code is: the request could not find[…]
Call Flow Diagram – Screen Detailed Analysis for VoIP
By sigmatelecom Business, VoIP Sep 26, 2019
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 VoIP call from beginning to end. Flows are like roentgen of the VoIP calls that show the time of the call invitation, end, etc. It’s[…]
CDR Monitoring (Call Detail Record) Screen Details
By sigmatelecom Telecom, VoIP Sep 19, 2019
When you are monitoring a VoIP traffic, CDR (Call Detail Record) screen is one of your best friends, helping you by showing what’s going on! You can track the rates and changes and make inferences about the traffic and routes. Today we are going to mention this screen in detail and try to tell the[…]
Type of VoIP Sip Codes – Timeout – SIP 408 – SIP 504
By sigmatelecom Business Sep 13, 2019
If you are looking for a solution for the Sip Codes and errors about a VoIP Traffic, then you are on the right route. Welcome to the VoIP Guide of Sigma Telecom. Today we are gonna mention the timeout error codes; Sip 408 Request Timeout and Sip 504 Server Timeout. Let’s start to fix the[…]
5G Wireless Revenues will reach $4.2 Billion in 2020
By sigmatelecom Business Sep 05, 2019
According to the global research and advisory research company Gartner, in worldwide aspect, 5G wireless revenues are going to reach $4.2bn until 2020 which means doubling the past revenue. A significant rise in 5G technologies shows the interest of people! The research company underlined that in 2019 the total revenue for 5G network infrastructures was[…]
5G Users Reached 1 Million in 140 Days!
By sigmatelecom Technology, Telecom Aug 29, 2019
While intensive discussions 5G continues, SK Telecom announced that they have reached 1 million 5th generation wireless network subscribers in only 140 days. SK Telecom has generally 28 million users and now 1 million, which presents 3.5% of its subscribers, are 5 G users. According to the South Korean telecom operator, the interest in this[…]
SIP-487 Request Terminated – Sip Error Codes
By sigmatelecom VoIP Aug 22, 2019
Welcome to the VoIP class and today’s topic is the Sip-487 error code. We’ll learn the reasons for getting this error code and the ways for fixing the issue. Take your seat, we are starting!
6 Critical Questions and Answers About VoIP Business
By sigmatelecom VoIP Aug 16, 2019
If you are new in the VoIP Business or want to know some information about it then you on the right page. Let’s start answering the questions about Voice Over Internet Protocol in your mind. Who was the inventor of VoIP Business ? The beginning of the VoIP business started with Alen Cohen who was[…]
The Latest News About New Technologies, 5G, Telecom, Digital Payment
By sigmatelecom Technology Aug 09, 2019
In a very near future we will talk about new technologies such as Industry 4.0, Internet of Things, Artificial Intelligence, Machine Learning, Big Data, Smart Gadgets, Augmented Reality, 5th generation wireless network technology, blockchain and digital wallet… And all of these concepts will become an everyday part of our lives. Everything is changing very fast[…]