SIP phone

Why SIP Phone Services Are Future Proof

SIP phoneThe traditional phone system that once connected the East Coast to the West Coast at a crushing rate per minute is falling apart. Even the phone companies aren’t making much of an effort to fix it.

Some of the blame falls onto cellular phones. In America, around 95% of the population owns a cell phone. Smartphones almost always come with unlimited long distance.

For businesses, though, the future lies with SIP phone services that route calls across the Internet. One of the big reasons is that VoIP technologies, like SIP, are all but future proof.

Before we jump into why SIP is future proof, let’s take a quick look at the essential of SIP.

Let’s go!

What Is SIP Phone?

SIP or session initiation protocol is one way of connecting calls over the Internet. It’s one kind of VoIP.

You can compare it to different kinds of kitchen stoves. Some of them use natural gas or propane, some use electricity to heat coils, and some are designed for induction cooking. Each stove is different in how it produces heat in the pan, but they all cook food.

SIP is the standard for multimedia communications.

SIP systems usually work through a trunk that leads into a private branch exchange. The trunk provides the channels that support a call coming in or going out.

The PBX has the technology to convert digital signals into analog signals or analog into digital. That ability is what lets it take phone calls from the internet or regular phone lines and direct them to the right place.

From the user perspective, there’s virtually no difference between a SIP phone and a regular phone. The phone that sits on a person’s desk, for example, will look like any multi-line phone.

The technical differences happen at the hardware and software levels long before the call reaches the person. We’ll talk about the feature differences shortly.

Software Updating

There is a hardware component to SIP phone systems. Like other computer technologies, though, calling over the internet is largely driven by software. That means that anything from a refined algorithm to a new codec can improve performance with no changes to hardware.

Think of it like your computer.

Yes, you need to replace it eventually. If you don’t use it for high impact processing and do some basic maintenance, though, you can usually keep using it for years. The software updates for programs and operating systems do a lot of the heavy lifting.

The same goes for SIP systems. Barring some random global disaster, there’s no reason to think tech companies won’t keep refining the software. Those ongoing refinements serve to future-proof the technology.

Hardware Improvements

Part of what makes the landline phone system problematic is that the technology has largely stagnated. While some of the switching gets done digitally now, the whole system still relies on wires connecting physical locations. When the wires get damaged, the system fails.

Not a stunning endorsement for a technology invented over 140 years ago.

Computer and internet technology continues to advance at a blistering pace. Fiber internet service promises to make home internet speeds ten times as fast or faster. Modems and routers that can take advantage of those speeds will flood the market.

All of that hardware improvement will only make SIP more reliable and accessible. That’s just the underlying technology that makes calling over the Internet feasible.

SIP providers will do everything they can to improve their equipment. Barring that they’ll license or buy equipment that takes advantage of those advancements.

For example, faster speed and higher bandwidths will make it practical for a SIP system to offer more individual lines to an enterprise. Say the old system supported 6 individual lines in the building. Those improvements could make 12 or 18 lines a standard offering.

Service Features

Classic landline telephone services are pretty limited in the features they can offer. Voicemail, faxing, and 3-way calls are a few common features. The physical nature of the system limits it’s potential.

The digital, Internet-based approach of SIP phone service offers a much wider world of features now and that will only improve. Now, you can route calls based on time of day, send to email, and even check analytics on your system. Not to mention features like digital faxing, video conferencing, and do not disturb options.

Some systems even let supervisors listen in and offer advice during training calls without the person on the other end knowing. How many future mistakes could your employees avoid if you corrected problem behaviors the first time?

VoIP also allows for employees to take their work numbers with them using smartphone apps. They don’t need to hand out their personal number just to take that meeting while they’re out of the office. They just turn on the app and take the call wherever they happen to be.


The biggest future proofing element of a SIP phone is the efficiency.

SIP systems let businesses bundle phone and data services. That consolidates two bills into one and simplifies maintenance services.

SIP trunking also offers cost savings on international calling, which is a big pain point for growing enterprises.

Say your product develops a sudden customer base overseas. The last thing you want to do is end up spending all your new profits setting up distribution in Europe.

Traditional and even cell phone providers simply can’t match the comparatively low cost of moving data over the Internet.

Parting Thoughts

The future-proof nature of SIP phone technology rests with the fact that it’s Internet-driven. Unlike landline phones that rely on decayed tech, computer and Internet technology continue to advance.

SIP gets to take advantage of all the advancements in the underlying technology to improve services and expand features. It also simplifies billing and maintenance.

It also reduces costs for long distance and international calling. That can prove mission critical for rapidly expanding businesses. specializes in SIP Trunk reselling. If you’d like to add SIP trunking to your company service offerings, contact us today.

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