5 Reasons to Switch From Your Legacy PRI to SIP Trunking

Business phone service may seem like a fairly commoditized offering, with your company choosing whatever telecom provider seems to offer the lowest costs. However, not only can there be substantial differences between providers in areas ranging from call quality to scalability, but the technology that a provider offers can make a key difference in your overall phone service.

In particular, migrating from a legacy Private Branch Exchange (PBX) telecom system—where calls are transmitted using a Primary Rate Interface (PRI) T1 line—to a SIP trunking service—where calls are transmitted over the internet using voice over internet protocol (VoIP)—offers five key advantages:

1. Save Money

Although phone service comes down to more than cost, there’s no denying the attractiveness of saving money when migrating from a legacy telecom system to a SIP trunking provider. SIP trunks can save you money in two ways:

  • Using SIP trunks tend to reduce the costs of long-distance and international calls. That’s because calls travel most of the way over IP lines before connecting with the Public Switched Telephone Network (PTSN) to route calls locally to their destinations. As such, long-distance calls are often charged as local calls.
  • While legacy telecom providers tend to charge based on capacities, such as offering a certain amount of minutes per month or even unlimited minutes with fixed, lengthy contracts, SIP trunk providers typically offer pay-as-you-go pricing. This means that you only pay for the phone service you use, rather than getting locked into expensive monthly plans, where you end up paying for capacity you don’t consume.

2.Quickly Scale Up or Down

Whether your business adds new employees to your headquarters, has seasonal requirements such as needing additional call capacity around the winter holidays or needs to pare down phone service that’s not being used in certain locations, SIP trunks can easily be scaled up or down. The beauty of a SIP trunk solution is that it’s a cloud-based system so once the initial system is set up, lines can quickly be added or removed digitally. In comparison, legacy telecom systems typically require complex physical installations to add more lines, and inflexible contracts make it difficult and costly to scale down if your organization needs to make a change.

3.Go Global

Similar to the advantages of scaling with SIP trunks, cloud-based VoIP systems tend to make it easier to add global coverage than legacy systems do. For one, SIP trunking providers often work with multiple telecom carriers to ensure global coverage, rather than the way a legacy telecom provider might only rely on its own carrier network. Zentrunk from Plivo, for instance, works with over 1,600 carrier networks to provide users the ability to communicate with anyone in over 190 countries. These partnerships help ensure both premium call quality and broad coverage.Moreover, SIP trunk users can easily add local, national, mobile and toll-free numbers. As a result, if your business has clients in different countries, those customers can reach you via a number that’s convenient and cost-effective for them.

4. Get Support Easily

Whether you need to add services or run into an issue with your hardware, you want a quick, painless solution. Yet legacy telecom providers don’t always offer 24/7 support and their levels of dedicated service can vary based on customer size or location.So if you need to get a hold of technical support to troubleshoot a technology problem or need to contact your sales rep to adjust your service, SIP trunking providers tend to be available 24/7 to provide support easily.

5. Gain Transparency

Lastly, using SIP trunks tend to come with more transparency than legacy telecom systems in areas ranging from pricing to usage. For example, pay-as-you-go pricing makes it clear exactly what you’re paying for, and you can often choose different pricing models from your provider based on your needs, as opposed to getting locked into an inflexible, hard-to-decipher contract from a legacy provider. In addition, the cloud-based nature of SIP trunk providers makes it easy to digitally keep track of phone usage, even for specific lines. Zentrunk, for instance, offers a self-service portal where users can view Call Detail Records (CDR), which helps you clearly understand your phone service usage, such as determining which offices or departments incur the most phone costs.

Migrating from a legacy telecom system to a cloud-based, VoIP solution using SIP trunks offers several advantages, and the decision comes down to far more than cost. Switching to SIP trunks can improve your overall phone service in terms of both technology features and experience.

To better understand how to select the right SIP trunk provider for your needs, see our blog post on 10 factors to consider. To learn more about SIP trunking and see how Zentrunk can help with your communications needs, get in touch with our team.

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