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95 Northwood Street, Jewellery Quarter, Bimringham, West Mildands, B3 1TH, UK

About us

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Volt Media is a VoIP Telecoms services operator, who offering voice services to the telecom operator market.


We at Volt Media deal primary with large multinational Telecom operators.


We offer a full A-Z voice termination service depending on the demands of our customers,  our ASR and ACD is of upmost importance to Volt Media as we ensure quality, termination for all our partners for repeat business, time after time.

Our History

What is VoIP?


Voice over Internet Protocol or VoIP refers to the technology that allows us to make and receive phone calls over the Internet in real time. It is a set of protocols working together to deliver internet telephony functions similar to regular phone lines or PSTN (public switched telephone network).


The difference is that it provides flexibility and mobility that is not possible with traditional telephony. By delivering voice calling functions over the Internet, it allows anyone to use VoIP from anywhere via their laptops, desktops, or smart devices.


A secure VoIP service


Volt Media employs a comprehensive security strategy to protect its virtual phone service and its users. Aside from high-level encryption that protects VoIP phone calls end-to-end, there are other measures employed including regular data center audits, multi-factor authentication and single-sign-on for account protection, and advanced account management and administration.


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VOLT MEDIA LTD

 Incorporated in April 2017


Set up as a media business offering technology solutions to end clients

June 2017

Elements of business and professional introductions and partners, lead the business to the VoIP Wholesale business.

January 2018


Business increased 4 fold, several colleagues joined to form a business where the we understand and help our partners to raise profitability and revenue.

Today we are proud to have partnerships with major telecoms carriers, working with them for a constant working solution for all!

How VoIP Works


VoIP and Internet Telephony Basics: Important terms and concepts


VoIP is a set of protocols working together to provide telephony service that’s similar to regular landlines.


Before we go over the end-to-end process of how VoIP works, it is important that you familiarize yourself with some basic concepts that will help you understand how the technology works as a whole.


IP Packets for VoIP Transmission


Voice and data are encapsulated here. During a VoIP call, the voice or audio is captured and segmented into tiny samples which are then carried as payloads. These samples are attached to IP packets that will be transmitted between different networks, both public and private.


Codecs for conversion of analog voice data


Also known as codec-decoder, it converts analog audio signals (like your voice) into digital formats that are ready to be transmitted over the Internet. It also converts the digital form back to analog for the human ear.


Transmission Control Protocol (TCP) vs. User Datagram Protocol (UDP) for VoIP delivery


These are the two most common methods for delivering VoIP protocols over the Internet.


  • TCP-IP: packets sent using this method guarantees that data is delivered; and if it’s lost, it will be transmitted. Think quality over speed.

  • UDP-IP: packets are sent over the networks with no guarantee it will be received. Think speed over quality.


Real-time Transport Protocol (RTP) for carrying VoIP audio stream


This protocol is responsible for carrying audio and video streams during VoIP transmissions. It carries the information about the file, including its format and media type.


Session Initiated Protocol (SIP) and SIP Servers for VoIP signaling


SIP is the protocol that is responsible for mimicking regular telephony. It is a standard signaling protocol that establishes, manages, and terminates real-time communications over IP networks.


SIP servers, on the other hand, accept SIP requests and respond to them. There are many types of SIP servers, with the Proxy server being the most known (since it facilitates connections to establish Voice over IP). Other SIP servers include Registration Server, Presence Server, and Redirect Server.


End-to-end process of VoIP


Using what we learned, here is an example of how a VoIP Call works, with each step showing what is going on in the background for every action taken.


  • Person A calls Person B (the calling party uses the SIP signal to try to establish a connection via the Proxy server--Ring Central uses TCP to deliver SIP)

  • Person B answers the call (the called party accepts the request from Proxy Server using SIP)

  • Person A and Person B talk (IP packet containing Voice data is delivered in via UDP or TCP; RTP transmits the voice data, while Codecs convert analog voice to digital format and vice-versa. All these are happening in real-time.)

  • Person A or Person B ends the call (the SIP signal is used to terminate the connection)


Making VoIP calls to regular phone lines or PSTN through VoIP gateways


VoIP gateways are used to convert traditional telephony connections into VoIP connections and vice-versa.


What happens is that when calls are initiated from a traditional landline phone, the gateway will translate the multiplexed voice into packetized voice sample. It will then follow the same VoIP call process discussed above.


While there’s more to VoIP transmissions than what is discussed here, this should give you a general idea of how VoIP works.

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VOLT MEDIA LIMITED

95 Northwood Street, Jewellery Quarter, Birmingham, West Midlands, B3 1TH

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