Encrypted & VPN-Based VoIP
Let’s Be Honest: This Is a Feature, Not a Product
Most providers would package this as a premium tier and charge accordingly. We’re listing it as a service because it’s something people search for when they’re shopping — and we want you to find us. But in practice, encrypted and VPN-based VoIP is just something we do for customers who need it. It’s not a big deal on our end, and we’re not going to pretend it is.
Depending on what you need, we may not even charge you anything extra. If it’s just a matter of turning on SIPS (that’s SIP over TLS — encrypted signaling), that’s a configuration change, not an upsell. For more involved setups — dedicated VPN tunnels, site-to-site connectivity — there may be a modest cost, but we’re not going to charge a whole herd’s worth of cash for it.
How SIP Normally Works (and Why That’s Usually Fine)
Here’s something the VoIP security industry doesn’t love to talk about: standard SIP — the protocol that makes VoIP calls happen — transmits over the public internet with no encryption. Your call signaling and your voice audio travel across the internet in the clear, just like a regular HTTP web page did before everyone moved to HTTPS.
And frankly? That’s fine for most people. The realistic threat model for a typical business phone call is… not much. Your competitors are not tapping your SIP trunk. The barista at the coffee shop is not intercepting your voicemail. Outside of government intelligence agencies — and perhaps the intelligence agencies of various hostile nation-states — nobody is really listening in on your calls.
We’re not saying security doesn’t matter. We’re saying that for the vast majority of businesses, unencrypted SIP over a decent internet connection is perfectly adequate, and anyone telling you otherwise is probably trying to sell you something.
When Encryption Actually Matters
That said, there are real reasons some businesses need encrypted voice:
Regulatory requirements. If you’re in healthcare, legal, finance, or government contracting, you may have compliance obligations that require encrypted communications. HIPAA, CJIS, ITAR, or your own organization’s security policies may mandate it.
Sensitive conversations. If your business regularly discusses trade secrets, M&A activity, litigation strategy, or anything where the consequences of interception would be serious, encryption is reasonable insurance.
Operating in high-risk environments. If you have staff in countries with aggressive surveillance programs, or you’re communicating across borders where interception is a known risk, encrypted and VPN-based voice makes sense.
Because you want to. Honestly, if you just prefer that your calls be encrypted on principle, that’s a perfectly valid reason. We’re not going to make you justify it.
What We Can Do
SIPS (SIP over TLS) — Encrypts your call signaling so that the setup, routing, and metadata of your calls can’t be observed in transit. For many customers, this is all they need, and we can turn it on with a configuration change.
SRTP (Secure Real-time Transport Protocol) — Encrypts the actual voice audio, not just the signaling. Combined with SIPS, this gives you end-to-end encryption of the entire call path between your phone and our platform.
VPN-based voice — For customers who want their voice traffic to travel over a dedicated, encrypted tunnel rather than the open internet. This is common for businesses with strict network security policies or multiple locations that want all traffic — voice included — on a private network.
We’ll help you figure out which approach fits your situation. Sometimes it’s one of the above, sometimes it’s a combination. It’s a moose point to over-engineer it — we’ll match the solution to what you actually need.
What It Costs
For SIPS alone: often nothing. It’s a setting we enable.
For SRTP: typically included at no additional cost with compatible endpoints.
For VPN-based setups: depends on the complexity, but we price it fairly. We’re not in the business of charging a premium for flipping a security switch.
If you’re coming from a provider who quoted you a fortune for “enterprise-grade encrypted voice,” you might be pleasantly surprised by what this actually costs when your provider isn’t trying to make it a profit center.
Need encrypted or VPN-based voice? Talk to us — we’ll figure out what you actually need and quote you honestly. It’s probably simpler and cheaper than you’ve been told.