VoiceOne

Connect your PBX, we do the rest

Connect your own PBX to our network from €6.50 per month. Works with Asterisk, FreePBX, 3CX and Cisco — number porting and Dutch support included. Not sure it's compatible? We'll simply check it for you.

Rather give us a call? +31 88 733 7337 — we're happy to help you figure it out.

Free switch & keep your numberCancel monthlyWorks with all major PBXsDutch support — a real human on the line

SIP Trunk

What is a SIP Trunk?

Already have a PBX at the office? Then we connect it to our network over the internet — that's a SIP trunk. From then on you call over the internet instead of old-fashioned phone lines. That's usually a lot cheaper, and you keep your own equipment. Ideal if you only want to outsource the calling connection. We take care of the setup.

  • We set up the connection for you, personally
  • Choose pay-per-minute or unlimited calling
  • Number porting available
  • Cancel monthly
  • Extra call channels easy to add

From

€6.50

per month · excl. VAT

No fixed contracts
Adjust monthly
Personally connected for you
Number porting included
24/7 support for outages

Why VoiceOne?

What makes our SIP Trunk different?

Easy to connect, reliable in use and flexible to manage.

Stable connection

Redundant servers and encrypted connections give you a reliable line that just keeps working. Compatible with all major PBXs, such as Asterisk, FreePBX and 3CX.

Scale whenever you want

Need more simultaneous calls? Adding or removing a line takes no time. No long-term contracts and no setup fees.

Pay per minute or a flat rate

Don't call much? Go with the Basic plan. Call a lot? With the Unlimited plan you always know what it costs.

Bring your number with you

You simply keep your existing landline numbers. We handle the entire porting process for you — nothing for you to do.

Pricing

Pick your plan

No setup fees. Adjust monthly.

SIP Trunk Basic

Call whenever you want and pay only for what you use.

€6.50/mo · excl. VAT
  • Use your own PBX
  • 1 simultaneous call included
  • Pay per minute
  • Number porting available
  • Adjust monthly
  • Extra call channels easy to add
Most popular

SIP Trunk Unlimited

Unlimited calling for a flat monthly rate.

€29.95/mo · excl. VAT
  • Use your own PBX
  • 1 simultaneous call included
  • Unlimited calling in the Netherlands
  • Number porting available
  • Adjust monthly
  • Extra call channels easy to add

SIP Trunk Unlimited NL + EU

Unlimited calling in the Netherlands and the EU.

€46.95/mo · excl. VAT
  • Use your own PBX
  • 1 simultaneous call included
  • Unlimited calling in the Netherlands and the EU
  • Number porting available
  • Adjust monthly
  • Extra call channels easy to add

Call rates SIP Trunk Basic

With the Basic plan you pay per call. Here are the rates.

DestinationConnection feePer minute
Calls to landlines (NL)€0.025€0.0189
Calls to mobile numbers (NL)€0.05€0.0832

Tip: Call a lot? With the Unlimited plan you pay a flat monthly rate, and all calls to landlines and mobiles are included.

All prices exclude VAT.

Don't have your own PBX yet? Check out our cloud-based business phone system.

See Hosted VoIP

Not sure your PBX is compatible? Let us take a look.

Asterisk, FreePBX, SBCs, codecs — we get that this isn't your bread and butter. Send us the make and model of your PBX, and we'll find out if it fits and set up the connection for you. No obligations, just honest advice from a real VoiceOne colleague.

Request a quote

Frequently asked questions

Everything about SIP trunking

No-obligation advice

Ready to order a SIP Trunk?

We're happy to help you pick the right SIP Trunk for your PBX.

No-obligation callQuick responsePersonal advice

Mmm... cookies! 🍪

Not the chocolate chip kind (sadly!), but almost as important. We use cookies to give you the best experience and to improve our website.