What is SIP Trunking and what can it do for your business?
If your business relies on traditional phone lines, you may be paying more than you need to while getting less flexibility in return.
SIP Trunking is a modern alternative to legacy ISDN (Integrated Services Digital Network) lines, replacing them with internet-based voice communication and giving businesses a more cost-effective and scalable way to manage calls.
What is SIP Trunking?
SIP Trunking uses your existing internet connection to make and receive calls, instead of relying on separate physical phone lines.
Instead of requiring multiple physical phone lines connected to telephone wall sockets, businesses can link their existing phone system to the telephone network via the internet (SIP), allowing calls to be carried online rather than over separate physical phone cables.
Rather than managing multiple individual lines, businesses can handle many calls through a single converged network, giving them greater flexibility, easier scalability, and better control over communication costs.
How SIP Trunking compares to traditional ISDN
The differences between SIP Trunking and ISDN are easy to see when you look at how each handles everyday business needs.
With ISDN, setting up additional lines requires physical infrastructure, which can make provisioning and installation take longer. For businesses that need to onboard new staff, increase call capacity, or open a new location, this can make it harder to respond quickly to changing communication needs.
ISDN relies on physical infrastructure, so adding new lines or increasing capacity can require additional installation and provisioning, resulting in longer response times. SIP Trunking, on the other hand, uses your existing internet connection instead of requiring additional physical phone lines for every new connection. This allows businesses to add capacity more easily as their needs change.
With SIP Trunking, you can start with as few as five channels and scale up to 30 channels as your needs grow, with each supporting hundreds of Direct Dial In (DDI) numbers. This gives organisations the flexibility to scale their phone capacity with ease, without having to plan around the same physical infrastructure requirements of traditional phone systems.
If something goes wrong, SIP Trunking keeps your phones running by rerouting calls automatically. ISDN requires a separate backup circuit just to achieve the same result.
The cost benefits of SIP Trunking
One of the most immediate advantages of switching to MyRepublic SIP Trunking is cost savings. Local outgoing rates start from as low as 0.75 cents per minute.
MyRepublic’s IDD rates are also significantly lower than standard telco pricing. Calls to India, Hong Kong, and the USA can be made from as low as 6 cents per minute, while calls to China start from 12 cents per minute. For example, calls to India can cost up to 92% less than the listed rate of 81 cents per minute.
Bulk usage discounts are also available with MyRepublic, meaning costs continue to decrease as call volumes increase.
Features that support everyday business operations
Beyond cost and scalability, MyRepublic SIP Trunking comes with practical add-on features that make day-to-day communication easier, including Caller ID, Call Forwarding, and Private Numbers, which can be added based on your business needs.
These features can also make the transition to SIP Trunking smoother. With number portability, you can keep your existing business phone numbers when switching over to MyRepublic SIP Trunking, helping avoid disruption to your customers or internal contacts.
Together, these features give businesses greater flexibility in managing their phone system while making it easier to adapt as communication needs change.
Is SIP Trunking right for your business?
If your business handles multiple calls at once, operates across locations, or wants to reduce communication costs, SIP Trunking could be the right solution. It offers the reliability and features of a business-grade phone system without the limitations of traditional infrastructure.
MyRepublic offers SIP Trunking solutions tailored for businesses of all sizes. Get in touch to find out which plan fits your needs.
