Multichannel Backups: How Teliqon Secures Your Communications Even During DDoS Attacks

Imagine your sales team is crushing it: their phones ring, leads scraped by marketing convert well – and suddenly, boom. Silence. Your calls aren’t going through. No one can reach support. Everything grinds to a halt. That’s what a VoIP DDoS attack feels like – and it’s happening more than ever.

According to NETSCOUT’s Threat Intelligence report, DDoS attacks on VoIP services jumped 98% in just one year, mostly targeting SIP and RTP traffic, the backbone of modern phone calls. Why? Because it’s low effort for attackers and high impact for businesses like yours.

The scary part? Most VoIP providers still rely on one channel – like SIP – and when that goes down, so does your entire operation. At Teliqon, we’ve built multichannel backups that automatically reroute your calls through other paths – like DID, browser-based calling, or SMS – so your communication keeps flowing even when one route is under attack.

Let’s break down how it works and why your VoIP setup might be way more fragile than you think, diving into the nuances of DDoS VoIP.

A regular DDoS attack floods a website or server with traffic until it crashes. A VoIP DDoS, on the other hand, targets the systems that make your phone calls work – usually your SIP servers or media gateways. Think of it like someone spamming your phone line so hard that real customers can't get through. And if your provider isn’t prepared, that one attack can knock out all your incoming and outgoing calls at once.

What makes a VoIP attack so sneaky is that it doesn’t always look like chaos from the outside. Calls might just start failing, audio gets choppy, or you hear dead air. Meanwhile, your team’s losing deals and your support agents are stuck in the dark. These attacks are cheap to launch – but expensive for you if you’re not protected with failover systems or alternate channels.

Most providers stick to a single route for voice – like SIP trunking – so if it gets hit with a telephony DDoS, you’re out of luck. Teliqon takes a different approach. We’ve built a global infrastructure that supports multiple voice and messaging channels at once – SIP, virtual numbers, browser-based calling, and even fallback SMS – and they’re all connected, monitored, and ready to switch in real time if something breaks.

Here’s how it works: if one part of the system (like SIP) gets overloaded or targeted, your traffic is automatically rerouted to another channel – for example, DID-to-browser-based calling or DID-to-DID fallback. We also use geographic redundancy, so even if one region’s under attack, another can take over without your team even noticing. It’s kind of like having multiple highways to the same destination – if one’s jammed, you just take the next exit.

This setup isn’t just tech for tech’s sake. It means your business can keep running calls, closing deals, and helping customers – even while others are dealing with complete outages.

Here’s the ugly truth: most providers can’t handle a VoIP denial of service scenario because they don’t own their infrastructure – they rent it. That means if something goes wrong, they’re waiting on someone else to fix it. And when you’re under attack, every second of silence is a lost deal, a missed support ticket, or a frustrated customer ready to churn.

Another big issue? They put all your calls through a single protocol or region. So if their SIP trunk gets flooded, that’s it – everything goes down. No backups, no reroutes, no heads-up.

Teliqon solves that by running its own hardware, not just renting cloud space. We’ve got direct interconnections with Tier-1 telcos, a high-availability network across continents, and built-in failover logic that kicks in before you even know there’s a problem. That’s the difference between hoping your system survives – and knowing it will.

Let’s say you’re running a fintech sales team – 15 agents calling leads across Europe. Suddenly, your main SIP trunk gets slammed by a VoIP denial of service attack. In a typical setup, your phones would go dead, your agents would panic, and you’d lose thousands in pipeline.

But with Teliqon, the system doesn’t blink. Call traffic automatically shifts from SIP to a virtual number or browser-based calling. Agents keep dialing – maybe they don’t even know there’s an attack happening – and you stay in business. In one real case, a client rerouted over 7,000 calls in under five minutes during a regional disruption. Zero downtime. Zero deals lost.

That’s the power of having multichannel backups built right into your infrastructure – no scrambling, no manual switching, just uninterrupted work.

A VoIP DDoS attack isn’t something you can brute-force your way through: you need innovative architecture. Teliqon is built from the ground up to detect, deflect, and route around trouble before it hits your business.

First, we use a high-availability setup – multiple data centers, failover-ready, all monitored 24/7 by professionals who are actually present (not just scripts). If there’s abnormal traffic or SIP flooding, the system instantly reroutes to a stable path – like a virtual number, browser-based calling, or even fallback SMS if needed.

Second, we don’t wait for things to break. Our platform constantly analyzes quality metrics like call success rate, audio clarity, and regional latency through built-in Call Analytics. So if a route starts acting weird, we already know, and traffic’s moving to a better option before your team feels a slowdown.

Add on CRM integration, browser calls, and direct Tier-1 telco interconnects, and you’ve got a setup that doesn’t just survive attacks – it works around them without missing a beat.

Why This Matters: The Real Cost of Downtime

When a VoIP attack hits, it’s not just a technical hiccup – it’s a revenue leak. Let’s do some quick math. If your sales team books even $200 worth of deals per hour, and a DDoS attack knocks you offline for half a day, that’s thousands gone – not to mention the leads you’ll never get back.

And that’s just sales. For support teams, a few hours of silence means angry customers, bad reviews, and churn you can’t undo. If your phone system is your main communication tool (and for most businesses, it is), then it’s mission-critical – not optional.

This is why relying on a single channel or a provider with no backup options is a huge risk. Teliqon’s multichannel routing and always-on failover let you sleep at night, knowing your team can keep working – no matter what kind of attack is coming your way.

Downtime doesn’t just cost money – it kills momentum. A DDoS VoIP attack can hit without warning, but it doesn’t have to take your business down with it. With Teliqon, you get more than a phone system – you get a multichannel safety net built to keep calls flowing, customers happy, and teams productive.

Whether you're using SIP, virtual numbers, browser-based calling, or all of the above, our system reroutes traffic automatically during outages – no manual fixes, no scrambling, no excuses.

Ready to test it for yourself? Add Teliqon as a backup SIP trunk or go all-in. Setup takes less than a day – and you’ll finally stop worrying about your phones going dark when it matters most.