To make international calls we know that the cost of large telephone companies and even for SMEs and freelancers can be very high. That’s why it’s important to know about services like SIP trunk, which can significantly reduce communication costs for businesses. In this article, we will explore the aspects of SIP Trunk that will allow your company to expand internationally.

What a SIP trunk offers to businesses.

To give a brief explanation of a SIP trunk, we can say that it is a technology that allows companies to connect their telephone system (for example PBX), with a public network, so that calls leave the virtual switchboard and travel through the Internet thanks to the SIP trunking channel that will then send to a mobile or landline phone. Let’s say in a simpler way, that SIP trunks collect calls and connect them to a VoIP provider that will then send them to a public network.

SIP Trunk is a modern alternative to traditional phone connections, allowing businesses to connect their IP PBX directly to a VoIP service provider via the Internet, without the need for physical phone lines. In the past, companies would purchase PRI lines, which allow multiple voice channels, to connect their traditional PBXs to the public telephone network. Alternatively, they could use individual analog lines. Nowadays, you can purchase SIP Trunk service from your internet provider and connect it to an IP phone system, which can be located in your office or in the cloud.

Using SIP trunking offers businesses several advantages, such as consolidating their services by integrating voice, data, and video, since everything operates over a single IP network. Additionally, it provides enhanced security with encrypted communication traffic, such as TLS and SRTP, making it a secure and reliable technology.

Another key advantage of SIP trunks is that they allow the assignment of virtual numbers. This means a company can have a presence anywhere in the world, reducing the need to have an office in every country. It also significantly lowers costs, especially for long-distance calls, as rates are cheaper and calls can be connected through local providers.

SIP trunking is a flexible and reliable technology for businesses of all sizes and industries. It’s a scalable service, meaning that if a company needs more voice traffic capacity, the SIP trunk allows for increasing or decreasing the number of channels as needed.

How to reach international customers with a SIP trunk.

A SIP trunk is an excellent option for large call centers, as it allows transferring connected numbers as Caller ID. To do this, an external and static IP address is required in the phone system. Also, we should mention that the display of the CallerID also depends on the provider’s policies and local regulations.

Outgoing calls will be possible from static IP addresses established in the SIP trunk. This means you won’t need to enter a username and password when configuring the equipment. Once the SIP trunk is created and a group of numbers is connected, they can be used for Caller ID without additional adjustments. In the case of Megacall, a verification process is required for numbers used as Caller ID.

This means that SIP trunk configuration is useful for those with many phone numbers, as it allows sending all calls through a single SIP link, transmitting the necessary number for Caller ID.

Additionally, if your company has branches in several countries, you can connect all your offices through a single SIP trunk. This significantly facilitates communication between international teams and enhances customer satisfaction. By simply adding numbers to the SIP trunk and directing them to the PBX, you’ll have the ability to offer customers more calling options at an affordable price.

At Megacall, we understand that the communication needs of companies must continue to advance as technology advances, and that is why our VoIP services, of course, include SIP trunk service, with no registration fee and with more than 50 channels, where you will not only save on international calls, but you will also be able to obtain telephone numbers from more than 100 different countries, facilitating the connection between foreign markets. In addition, Megacall has a direct connection with several selected operators in different countries that guarantee that calls are of high quality and all this creates an experience of proximity and trust for customers.