What is IP Telephony and How Does it Work?
Did you know that IP telephony offers greater flexibility and convenience in communications?
Discover the best IP telephony solution for your business, easy to install and use.
What is IP Telephony?
IP telephony is a telephone communications service that uses the Internet Protocol (IP) to transmit voice and data over the Internet instead of using traditional telephone lines. This telephony communicates by digital means through the network using VOIP or Voice IP, and has become the most used communication service by most companies in the world due to its low implementation cost and quality.
How does IP Telephony work?
Digital Process
The operation process of IP telephony is relatively simple. When we make a call, our voice is converted into digital data that is compressed and sent in packets over the internet or through a local IP network between IP phones from a telephone exchange. These packets are transmitted through routers and servers until they reach the call recipient.
Once the packets reach the recipient, they are decompressed and converted back into voice signals so that the receiver can hear our voice clearly. This entire process occurs in real time, allowing fluid communication without noticeable delays.
Advanced Features
This cloud-based telephony offers many improved features compared to analog telephone systems, this is because the service is provided through the internet and can be managed from a web panel where you can review statistical data, upload contacts, add numbers, or adjust settings for remote and physical extensions, to take advantage of functionalities such as call forwarding, transfers, conferences, among others. Thus the company and users can communicate more efficiently, achieving improvements in productivity and saving costs.
Voice and Video Calls
Advanced Call Management
Remote Extensions
Statistical Reports
What are the benefits of IP Telephony for Businesses?
IP telephony offers great benefits to companies by being a more economical, flexible and versatile alternative to traditional telephony, allowing your business to improve efficiency and productivity in internal and external communications. For example, it allows you to make national and international calls at much cheaper prices; it is highly scalable, which means it can easily adapt to the changing needs of a business.
It is possible to add or remove telephone lines as needed, without having to make physical changes to the infrastructure. With IP telephony, voice channels are transmitted over the internet and can be interconnected through a SIP trunk from a VoIP provider with a Virtual telephone exchange without the need for physical lines, providing the ability to receive and make multiple simultaneous calls with a single number, from multiple devices and from anywhere, improving mobility and remote work.
In addition, IP-based solutions typically have a centralized management interface that facilitates the configuration, monitoring and maintenance of telephone lines and associated functionalities, thus allowing centralization of the management of company communications from anywhere.
Discover the telephony that is transforming the way we communicate!
Advantages of IP Telephony
No installations
Agents will only need a PC with internet connection to work.
Simultaneity
Availability of simultaneous channels in minutes for SIP trunks.
Bill Savings
60% savings on local and international telephone bills.
Reliability
Platform with 99.9% stability with high levels of cloud security.
Mobility
Being a cloud platform, it facilitates the implementation of teleworking.
Global Communication
We provide trunks for outgoing calls from all countries in the world.
Multi-device
Answer your calls from PCs, Smartphones and VoIP devices.
Features at hand
We provide multiple tools that help increase productivity.
Integration
Allows integration with different physical devices or telephone plants.
Services we can Integrate with internet telephony
IP Numbers
We have coverage in over 80 countries for virtual numbers or DIDs, as well as simultaneous channels to receive calls with high availability and quality.
Virtual IP PBX
Also known as Virtual PBX, it is a unified telecommunications solution 100% in the cloud, without limits and easy to install, that can adapt to the changing needs of a business.
Sip Trunks
We provide SIP Trunks with unlimited simultaneous channels for both incoming and outgoing calls with immediate availability and no complications.
Internet Calls
We are internet calling providers to national and international destinations in most countries of the world at affordable prices, with crystal-clear voice quality, and total flexibility.
What is needed to use IP telephony in companies?
Having good telephone communication is essential for the success of any company. That is why more and more companies are adopting IP telephony, which offers higher sound quality, greater flexibility and reduced communication costs. But what is needed to use IP telephony in companies? We explain it to you below:
1
Requisito 01
A good Internet service
A good Internet service
The internet connection must be stable and is a high priority point to set up IP telephony, since it is a service that requires internet to function. It can be a broadband internet connection, with fiber, 4G, 5G, or satellite, the important thing is that it is high speed and quality, and has the capacity to cover all users of the same network.
2
Requisito 02
IP Terminals
IP Terminals
IP telephony allows the use of multiple devices for extensions or terminals that will fulfill the function of managing calls in the telephone exchange or PBX in the cloud. Below we define the most common devices needed to use this type of service:
IP Phones:
They are physical devices very similar to conventional landline phones but with the characteristic of allowing communication via the internet. In a cloud telephony system, IP phones connect to an internet modem or router to transmit voice over the internet. Some companies use it traditionally, but today it is replaced by VoIP software or softphones that have the same functionalities without the money investment in these devices.
ATA Adapters:
They are small devices that connect to the telephone line and the internet network to convert analog signals into digital ones. In this way, they allow you to use conventional phones to make calls through the IP telephony network.
Softphone:
It is an application or software based on the SIP protocol that can be installed on physical devices such as PCs, smartphones, and tablets. This App simulates or has the same functionalities as a conventional phone, therefore it is used to make and receive calls.
3
Requisito 03
A reliable provider
A reliable provider
To implement IP telephony in your company it is necessary to hire a provider that offers all the necessary conditions to obtain a good service, for example good support, that it is easy to configure, that it is stable, that it has quality, scalability, among others.
Save and improve efficiency in your business call management!
Differences between IP Telephony and traditional telephony
The most important difference between these two technologies is the savings. IP telephony has the advantage of being stored in the cloud and therefore it is not necessary to use wired, nor to make installations or maintenance of physical equipment to put it into operation, which in turn brings benefits such as mobility and productivity that are necessary in today's business world.
IP Telephony
Traditional Telephony
No need for wiring or physical equipment.
Yes, it is necessary to use wiring and physical equipment such as telephone plants.
The expansion of simultaneous channels and extensions is immediate.
The expansion of channels and extensions is very slow, and in some cases the addition of new equipment is required.
Implementation time can be a matter of hours depending on the solution.
Implementation time depends on many factors such as the delivery of the trunk by the telephony operator, and could take several days to implement.
Multiple devices such as PCs, Tablets, Smartphones, and IP phones can be used for operation.
Only analog phones can be used to start operation.
Integration with third-party functionalities or different devices is possible.
There is no way to integrate with other solutions because there are no APIs.
We have the ideal Telephony solution for your Business
At VoiceToPhone we help our customers achieve their goals and targets supported by our technological tools. We provide you with a cloud-based telephony system that offers security, profitability, reliability and flexibility and is being increasingly adopted by most companies. Contact us!
Frequently Asked Questions
Resolve common questions about IP Telephony and how it works in your company.
What should an ideal IP telephony system be like?
A truly effective IP Telephony system must:
- Be hosted in the cloud, which eliminates physical infrastructure costs and potential long-term technical failures.
- Be scalable, to easily adapt to your company's growth.
- Guarantee security in all communications through robust encryption protocols.
- Be intuitive and easy to use from any device (laptop, smartphone, softphone, etc.).
- Have advanced tools (call queue, recording, IVR, detailed reports).
- Have agile and reliable technical support.
What is the sound quality like with IP telephony?
The quality depends directly on your Internet connection. With stable and sufficient bandwidth (minimum recommended: 100 kbps per simultaneous call), the audio quality is equivalent to or better than traditional telephony. Our platform uses high compression and low latency codecs to ensure clarity in every conversation.
Are calls made through IP telephony free?
Not exactly. Although internal calls (between extensions of the same system) are usually at no additional cost, calls to landline or mobile numbers do have a rate. However, these rates are much cheaper than conventional telephony, especially for international or long-distance calls.
Are IP telephony calls secure?
Yes. Modern IP Telephony systems implement encryption protocols such as TLS (Transport Layer Security) and SRTP (Secure Real-time Transport Protocol). This ensures that both call signaling and transmitted audio travel protected, preventing unauthorized eavesdropping or interception attacks.
How important is IP telephony in a Virtual PBX?
IP Telephony is the core of a Virtual PBX. Without it, it would not be possible to route calls over the Internet or benefit from advanced features (IVR, recording, reports, etc.). Additionally, using SIP trunks allows you to connect your Virtual PBX to the public telephone network (PSTN) at very low costs, without depending on traditional physical lines.
Do I need to buy physical equipment to start the IP telephony service?
Not necessarily. Our IP Telephony service is 100% in the cloud, so you can start using it without investing in specialized hardware.
All you need is a device connected to the Internet: it can be your desktop computer, laptop, smartphone, or tablet. From there, you install a "softphone" (software phone application) and you're ready: you can make and receive calls immediately.
If you prefer the convenience of a physical phone (with traditional keypad and handset), there are also IP phones that connect directly to your network and work just as well. But it's a personal choice, not a mandatory requirement.
If you need help choosing the right plan, we'll guide you step by step.