13 posts tagged with "VoIP"

So it's official - after kickstarting the market for internet calling 23 years ago, Skype is shutting down. Microsoft announced they're retiring Skype on May 5, 2025, giving users just 10 weeks to figure out what to do with their accounts.

Skype as we all once knew it will be a thing of the past soon. At one point (many years ago) we were actually able to forward phone calls directly to your Skype account. It was great, you could use Skype which many users already had with any local phone number. In 2011 Microsoft bought Skype for $8.5 billion and now it's off to the graveyard - sad day to say the least.

Back in 2022, I wrote a piece about entrepreneurs not taking full advantage of SIP (Session Initiation Protocol), and looking back, I feel like I was onto something...

The potential was there: an open, reliable technology that could save businesses money and give them more control over their communications. Looking back now in 2025, that post feels prescient - but with a twist I hadn't anticipated.

Introduction: The Hidden World of SIP Security​

I was browsing around on Hacker News and if you're not familiar, the good stuff is usually in the comments. I was intrigued by this comment (by @kkielhofner) and how he/she illustrates a common but often overlooked misconception about SIP. Specifically, the misunderstanding pertains to the role and implications of port 5060 and its associated traffic in a standard SIP deployment.

Note: If you're looking for a VoIP phone number to register an OpenAI account go to the bottom of this post.

Savvy entrepreneurs have been taking advantage of the versatility SIP has to offer since the mid-'90s. We're excited to see more jump on board, it's a neat alternative to the closed VoIP ecosystem. (i.e. One VoIP company app for all devices, employees etc.)

"Forwarding the calls" somewhere vs. setting the calls to ring somewhere are 2 different things. It may be important for you to know the difference.

At our core, we'll always offer you the ability to use the FlyNumber(s) in one of the following three ways.

• This post is outdated so you'll want to use this guide, it uses the new phone system and the zoiper or groundwire app for iOS/Android.

It’s been a while since we’ve updated the blog, our apologies . We’ve been very busy updating the “internals”, we’re about to introduce FlyNumber SIP addresses among other neat features. The exterior may look the same but there’s plenty going on inside. We’re coming out with new features almost every quarter and the PBX/ Virtual phone system is evolving very nicely. You need to try it out if you haven’t already, it’s visually appealing and the grid gives you a real sense of customization.

Look at it as a “second line” on your smartphone without any minute restrictions or contracts. I’ve found this method to be the most reliable without a doubt; using apps like Skype just don’t cut it. You can set this up a couple different ways; one example would be to use a combination of iOS or Android devices to manage the calls coming in on your FlyNumber. I use my iPhone and iPad as an example below.

Using an Actual Phone