SIP trunking is a telecommunications system that uses Internet Protocol to transmit phone calls through the Public Switched Telephone Network or PSTN. Organizations and enterprises use SIP trunking services either by a fixed internet connection or using an IP-enabled PBX, a VoIP vendor, and a gateway that supports IP-based audio calls.
You don’t need any physical infrastructure to enable SIP trunking. It’s rather a group of digital protocols provided by a SIP network provider to be accessible through the internet. This article highlights a few reasons behind SIP trunking’s popularity and the fact that organizations everywhere use it to replace legacy phone systems.
With SIP trunking or Voice over IP in general, all calls are considered local calls because they are made over the internet. Using this system, a lot of companies can save millions of dollars spent to cover the costs of their monthly long-distance and international calls.
A SIP call is sent by the trunk to the provider’s termination point to be transferred through the local PSTN. This means you only get charged for a local call made over the internet. For enterprises, this is a golden feature that saves costs and allows them to predict their monthly communication expenses.
SIP trunking does not require a PSTN gateway to connect calls and rather connects directly to your service provider to let you enjoy internet-carried calls. Eliminating the PSTN gateway is the reason this service acts as a Unified Communications as a Service or UCaaS. Companies using SIP trunks enjoy one unified communications system that provides them with multiple digital capabilities and benefits.
These benefits include enjoying a cheap, high-quality communications experience, collaboration apps, video-conferencing, and many other scalable cloud-based tools that can help any business. This is all thanks to the removal of the physical gateway, which enables the SIP trunk to connect directly to your chosen ITSP.
Unlike legacy phone systems, SIP trunking systems show more resilience and reliability when it comes to emergency events or disasters. Voice communications are exposed to failure due to many unexpected events such as natural disasters, network failures, and hardware malfunctions. However, SIP trunking services use reliable technologies with a wide array of digital solutions to these events.
For example, geographic redundancy is used to route calls to different destinations or data centers in the occurrence of a disaster or network failure. You may also have additional disaster preparation measures provided by your SIP trunking provider to help you create your own disaster plan.
Some of these disaster measures allow you to choose predetermined numbers to route your calls to using a backup cloud system or trunk provider in case you face any connection issues.
Most companies and enterprises are switching to new PBX and Voice over IP technologies now to replace the traditional analog phone. This has led many organizations to cut down on communication costs and enjoy a much more convenient private telephony system.
Using SIP trunking for business communication eliminates the need for physical hardware and provides the cheapest rates for business overseas communications.