Communication

VoIP & Telephony

From the ISDN shutdown to modern IP telephony – we plan, migrate and operate your telephony with no risk of downtime.

The classic ISDN world is history. We guide companies through the switch to VoIP – from connectivity and VoIP trunks to a complete phone system including door intercoms. Throughout, we focus on voice quality, encryption and seamless integration into your existing IT.

Frequently asked questions – more on our detail page

Why we use IAX trunks Why our DIALOG system is sustainable How you save costs with our VoIP accounts Which modern telephony features our system supports How number porting works A cost example of a migration How a migration project runs

ISDN migration

Orderly migration from ISDN/analogue to VoIP – number porting, parallel operation and a clean cut-over.

VoIP trunks over IAX and SIP

Connection of high-performance trunks – either via IAX (NAT-friendly, bandwidth-efficient) or SIP for maximum provider and device compatibility, redundant and encrypted (SRTP/TLS).

VoIP phone systems – our DIALOG

Planning and operation of modern phone systems – on-premise or hosted in our data centre. We mainly use open-source components such as Asterisk, and with them our proven DIALOG system.

Gate & door intercoms

Integration of door and gate intercoms as well as door openers directly into your telephony – individual solutions with various manufacturers and options.

All about VoIP & Telephony

We answer the most common questions in detail.

Go to detail page

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Interested?

We are happy to advise you on VoIP & Telephony without obligation.

Get in touch +43 1 30600

Keywords

IAXSIPAsteriskDIALOGSRTPTLSRufnummern-PortierungTelefonanlageTürsprechstelleVoIP-GatewayFax2Mail