Connection
Your hardware and/or software can be connected to our system via both IPv4 and IPv6 (Looking Glass). Naturally also via TCP and always independent of your Internet provider.
Services: HD voice, TLS, SRTP, T.38 fax and IPv6 connection
We are regarded as a driver of innovation in the industry. For over two decades, we have been offering services such as HD voice, TLS and SRTP for signaling, T.38 fax and IPv6 connectivity. Our goals are only achieved when you are satisfied and successful in using our services.
dus.net offers a wide range of functions and solutions to help you simplify and improve your telephone communication. Security and reliability always have the highest priority.
Encryption
Encryption of your telephony is possible with TLS & SRTP, whereby TLS encrypts the SIP packets and SRTP encrypts the call itself. TLS can also be used at dus.net without SRTP. We also offer DTLS in conjunction with WebRTC.
Quality
All calls are made in the best possible voice quality, depending on the software or hardware you are using. Many codecs are available for this, including the G.722 required for HD telephony or the G.711 standard.
TC systems (trunk)
The DDI function (Direct Dial In) is indispensable when using your own PABX system. Use your PABX system via a single trunk.
System functionality
You don't always have to have your own telecommunications system. Our system already has extensive TC functions and is supplemented by an ACD system.
Security
Protection against nasty surprises. Whitelisting, blacklisting, time and/or credit limits, destination network regulation, IP address restriction.
Local numbers
Individual numbers and/or number blocks, with or without a caller ID, are available from all German local networks.
Change provider
Take your existing numbers or number blocks with you to us. Number porting has never been easier.
Faxing
Use extensive fax services. Incoming faxes via fax-to-e-mail or with T.38 and outgoing faxes from the customer center, e-mail-to-fax or also with T.38 .
Group call
One call, many destinations. The group call function (parallel call) allows up to ten internal connections to ring simultaneously and/or up to two external destinations, also time-controlled.
Call forwarding
If you are on a call or not at your desk, call forwarding (also time-controlled) ensures that no call goes unanswered.
Voicemailbox
The voicebox not only records calls in your absence, it also simply plays back announcements without an answering function, e.g. if you want to inform your customers about company vacations.
Own music on hold/sound logo
You can create individuality with your own music on hold and your own sound logo (music instead of ringing signals).
Display your own CLIP
Your own telephone numbers that are with third-party providers can also be stored with us as a CLIP and displayed to the called party if a telephone number from us is connected.
CLIP no screening
Exclusively for our business customers, the transmission of CLIP numbers even if they are not with you, e.g. the transmission of the A number for your own forwarding.
VoIP API
VoIP api with unlimited webhooks, 7 event types, RTCM features and OAuth2. Integration with almost all CRM/ERP systems on the market. Free 14-day trial period.
Block-based call handling
Incoming calls can be configured using modules. Existing modules such as Voicemailbox, Voicemailbox Pro, call distribution (call forwarding, group call) or time-based call forwarding and much more.
IVR menus
From the simple IVR menu to the Enterprise grade IVR menu with voice recognition, everything is possible. Action types such as individual call, group call, external forwarding or voicemail box. Announcements depending on business hours and much more.