SIP Trunk von atms

SIP Trunking

Telephone affordably & securely worldwide

Connect your IP telephone system to the low-cost atms network

To make calls more cheaply via the Internet (Voice over IP), a SIP trunk is needed for the connection to the telephone network. Connect your existing IP PBX system to the high-availability, low-cost atms network without complications!

With our SIP Business Trunk, you have 10 channels for simultaneous calls right from the start. The number of channels can easily be increased at any time.


From 10 channels only € 39 a month

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That's how easy SIP trunking works

Who does benefit from SIP Trunking?

Cheap and reliable SIP provider

For businesses that already have an IP-enabled telephone system and are looking for a low-cost, reliable SIP trunk provider.

No additional expenses

No additional investment in hardware or expensive maintenance contracts necessary; you continue to use your technical infrastructure.

Retention of existing number

Free-of-charge retention of your existing landline or service numbers – you can decide which number is shown for outgoing calls.

Low-cost calls with SIP trunking (c) Fotolia

Low-cost calls with SIP trunking

From 10 channels only € 39 a month

  • Benefit around the clock from the low-cost worldwide telephone rates offered by atms
  • No hidden charges – we time calls by the exact second after the first minute
  • No costly “free minutes” packages – with atms, you only pay for what you actually use
  • Call landline numbers in Austria and Germany at a rate of €0.035 per minute and mobile numbers for €0.065 per minute
  • Make calls within and between your business locations absolutely free of charge
  • No set-up fee in combination with the atms VoIP telephone system

Your advantages with atms

Low call costs


Make calls at unusually low rates via atms’s own network – worldwide, around the clock and with accurate billing.

Servers in Austria


Our data centre is located in a secured environment in Vienna and has built-in redundancy for maximum availability.

Global phone numbers


Bring your existing numbers to us or select new telephone numbers in over 130 different countries.

Multiple features


SRTP encryption for your calls, administration of multiple phone numbers, automated alerts and much more.

No minimum tie-in


Make calls without the usual contractual tie-ins or minimum consumption requirements.

Personal support


The atms service team helps you with any questions about your SIP Trunk – 24/7 in the event of system disruption.

What our happy customers say

Arvato infoscore

"atms is a solid partner, whose portfolio of services has grown over time along with our requirements. Any challenges that have arisen have been quickly resolved through direct dialogue. We're very pleased about this and it creates a solid basis for a successful working relationship going forward."

5 stars for atms

Patrick Kühn, Head of the Service Dialog Center at infoscore austria

Additional References

Additional References VoIP and SIP by atms

We are happy to help!

Benefit from our many years of experience with telephony solutions and our outstanding infrastructure. We, the atms specialists, will gladly advise you personally and answer your questions.

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