Virtual Soft-PBX

Including 1-year update subscription
  • Up to 10,000 extensions
  • Own on-hold music
  • Own announcements
  • Emergency number management
  • Answering machine (voicemail)
  • Virtual fax
  • T.38 support
  • Interactive voice menu (IVR)
  • Time control of the PBX
  • Autoconfiguration of IP-enabled telephones
  • LDAP

Functions and features

Professional and reliable telephony that simplifies day-to-day business and improves customer service plays a central role in every company. With the VA1100-VM, many convenient functions such as interactive voice menus, call groups, queues or individual announcements, which used to be associated with considerable costs, can be realised quickly and easily.

Today, modern VoIP telephone systems can also be conveniently installed on an existing server. A VM-PBX is a scalable and flexible way to make professional and cost-effective calls. The VA1100-VM enables installation in a virtualised environment. All end devices that support the SIP protocol can be operated on the system. It is also possible to provide a large number of end devices simply via auto-provisioning. Analogue fax machines, door intercoms or alarm systems can also be connected via VoIP analogue gateways.

The VA1100-VM is an easy-to-administer telephony solution that integrates seamlessly into your existing IT infrastructure.

You are free to decide how and with what you want to make calls. The VA series supports a wide range of terminal device types. These include:

  • IP telephones
  • DECT telephones (DECT over IP)
  • Conference phones
  • Softphones
  • Smartphones via SIP client
  • Analogue end devices (fax; door intercoms; EC-Cash; analogue telephones) via ATA box

With the VA series, you can connect almost all VoIP telephones and end devices. You are therefore not tied to one manufacturer and can equip your telephony system according to your preferences. We support the following manufacturers, among others:

  • Snom
  • Yealink
  • Fanvil
  • Grandstream
  • Gigaset
  • Tiptel
  • Auerswald

Many telephones can be quickly and easily registered on the telephone system using auto-provisioning. Of course, you can also connect software-supported end devices (softphones) or smartphones to the system.

All features in detail

When a call group is defined, several extensions ring simultaneously when a call is made to a specific number. The end devices ring until one of the employees within this call group accepts the call. This feature is also known as "parallel ringing".

Virtual faxes have a clear advantage over analogue paper faxes. Incoming fax documents are sent to a defined e-mail address (e.g. so that all faxes can be viewed and processed centrally and easily.

With a modern telephone system, time-controlled call forwarding can be configured easily and conveniently. This type of time control makes it possible to set answering machines or other modules such as IVR (voice dialogue system), call forwarding or queues at a precisely defined time. A common scenario is automatic forwarding to an answering machine before and after the actual working hours.

Customisable music on hold and announcement texts are now standard functions of a professional VoIP telephone system. Music on hold, also known as music on hold, is useful when a caller is not put through directly to a call partner and has to wait in a queue on the line. As long as the call is on hold, the caller hears a sound file that can be customised.

Waiting loops are usually required when customers dial a number and the availability of employees or agents is not guaranteed. The caller then remains in the queue until an agent is available. Queues are mostly used in call centres, doctors' surgeries, larger sales departments or in the technical services sector, which have a medium to high call volume.

Interactive voice menus, or IVR for short, give the caller the option of making selections and thus distributing the call to different dialling plan numbers (e.g. extensions). The caller is played a sound file (as an announcement) that explains the possible IVR options. By pressing the corresponding button (e.g. 1), the call is forwarded to the set dialling plan number (e.g. to a call group, extension or queue).

The system contains both, a local and an LDAP telephone book. With the local telephone book, personally important telephone numbers are stored directly on the telephone system. Central telephone books, on the other hand, can be created with the LDAP telephone book. LDAP can also be used to set up a so-called reverse search. This means, for example, that incoming calls are displayed directly on a VoIP telephone or softphone.

Conference calls play a major role in today's digitalised world. Most modern VoIP telephones and softphones can be used to hold classic three-party conferences. If more than three participants are to take part in a conference or if the conference is to have a PIN-protected area, this can also be set up directly via the VoIP telephone system.

Even in the digital age, an answering machine is part of a professional telephone system. The telephone system contains sufficient voicemail boxes so that each extension or extension number also has its own voicemail box.

The following SIP trunks are natively supported by the telephone system:

  • 1und1 (DE)
  • ansitline flexConnect (DE)
  • ansitline flexSIP Comfort (DE)
  • ansitline flexSIP Comfort Flatrate (DE)
  • ansitline flexSIP Trunking (DE)
  • ansitline flexSIP Trunking Flatrate (DE)
  • ansitline Flat (DE)
  • ansitline Single (DE)
  • ansitline Small Business (DE)
  • ansitline Trunk (DE)
  • autphone aut-trunk (DE)
  • Colt SIP-Trunk (DE)
  • SIP-Trunk (benutzerdefiniert) (DE)
  • Deutsche Telefon (DE)
  • Deutsche Telekom All-IP (DE)
  • Deutsche Telekom CompanyFlex (DE)
  • Deutsche Telekom Corporate SIP (DE)
  • Deutsche Telekom SIP-Trunk (DE)
  • easybell SIP-Trunk (DE)
  • ecotel sipTrunk 2.0 (DE)
  • equada VOIP-Trunk (DE)
  • EWE business voice (DE)
  • EWE business voice + (DE)
  • fairytel SIP-Trunk (AT)
  • fonial SIP-Trunk (DE)
  • FRITZ!Box (DE)
  • HFO NGN Connect (DE)
  • innosoft SIP-Trunk (AT)
  • iWay Business Trunk (CH)
  • Kabel Deutschland (DE)
  • M-net MGA (DE)
  • M-net SIP-Trunk (DE)
  • myTweak Sip-Trunk (AT)
  • NetCologne Premium SIP (DE)
  • O2 VoIP (DE)
  • peoplefone SIP-TRUNK (DE)
  • Plusnet IPfonie extended (DE)
  • Plusnet IPfonie extended connect (DE)
  • R-KOM R-FON VoIP Trunk (DE)
  • reventix SIP-Trunk (DE)
  • sipcall SIP-Trunk (CH)
  • sipgate basic (DE)
  • sipgate trunking (DE)
  • telematica SIP-Trunk (AT)
  • TelemaxX SIP-Trunk (DE)
  • unitymedia Virtual Voice Port (DE)
  • Versatel Trunk (DE)
  • Vodafone SIP-Trunk (DE)
  • Vodafone VoIP (DSL) (DE)
  • Vodafone Zuhauseplus (DE)
  • SIP-Trunk (DE)

The information refers to the current firmware version.

The following manufacturers/devices are natively supported by the telephone system
and can be integrated via auto-provisioning:

  • Snom D120
  • Snom 300
  • Snom D305
  • Snom D315
  • Snom 320
  • Snom D335
  • Snom D345
  • Snom 360
  • Snom 370
  • Snom D375
  • Snom D385
  • Snom 710
  • Snom D710
  • Snom D712
  • Snom D713
  • Snom 715/D715
  • Snom D715
  • Snom D717
  • Snom 720
  • Snom D725
  • Snom D735
  • Snom D745
  • Snom 760
  • Snom D765
  • Snom D785
  • Snom 821
  • Snom 870
  • Snom D862
  • Snom D865
  • Snom MeetingPoint
  • Snom C520 WiMi
  • Yealink SIP-T19P
  • Yealink SIP-T19P E2
  • Yealink SIP-T20P
  • Yealink SIP-T21P
  • Yealink SIP-T21P E2
  • Yealink SIP-T22P
  • Yealink SIP-T23P
  • Yealink SIP-T23G
  • Yealink SIP-T26P
  • Yealink SIP-T27P
  • Yealink SIP-T27G
  • Yealink SIP-T28P
  • Yealink SIP-T29G
  • Yealink SIP-T30P/T30
  • Yealink SIP-T31P/T31G/T31
  • Yealink SIP-T32G
  • Yealink SIP-T33P/T33G
  • Yealink SIP-T38G
  • Yealink SIP-T40P
  • Yealink SIP-T40G
  • Yealink SIP-T41P
  • Yealink SIP-T41S
  • Yealink SIP-T42G
  • Yealink SIP-T42S
  • Yealink SIP-T42U
  • Yealink SIP-T43U
  • Yealink SIP-T46G
  • Yealink SIP-T46S
  • Yealink SIP-T46U
  • Yealink SIP-T48G
  • Yealink SIP-T48S
  • Yealink SIP-T48U
  • Yealink SIP VP-T49G
  • Yealink SIP-T52S
  • Yealink SIP-T53(W)
  • Yealink SIP-T54S
  • Yealink SIP-T54W
  • Yealink SIP-T56A
  • Yealink SIP-T57W
  • Yealink SIP-T58V/A
  • Yealink SIP-T58W
  • Grandstream GXP1165
  • Grandstream GXP1450
  • Grandstream GXP1610
  • Grandstream GXP1615
  • Grandstream GXP1620
  • Grandstream GXP1625
  • >Grandstream GXP1628
  • Grandstream GXP1630
  • Grandstream GXP1760
  • Grandstream GXP1780
  • Grandstream GXP1782
  • Grandstream GXP2130
  • Grandstream GXP2135
  • Grandstream GXP2140
  • Grandstream GXP2160
  • Grandstream GXP2170
  • Grandstream GXV3240
  • Grandstream GXV3275
  • Grandstream GXV3370
  • Grandstream HT802
  • Grandstream HT812
  • Grandstream HT814
  • Gigaset DE310 IP PRO
  • Gigaset DE410 IP PRO
  • Gigaset DE700 IP PRO
  • Gigaset DE900 IP PRO
  • Gigaset Maxwell Basic
  • Gigaset Maxwell 2
  • Gigaset Maxwell 3
  • Gigaset Maxwell 4
  • Auerswald COMfortel 1400IP
  • Auerswald COMfortel 2600IP
  • Tiptel 3030
  • Tiptel 3130
  • ansitel CTI Client
  • jitsi Desktop Client
  • Zoiper Softphone
  • Planet VIP-156PE
  • Fanvil X1SP
  • Fanvil X2(P)
  • Fanvil X210
  • Fanvil X3SG
  • Fanvil X3SP
  • Fanvil X3U
  • Fanvil X4U
  • Fanvil X5U
  • Fanvil X6U
  • Fanvil X7
  • Fanvil X7C
  • Polycom VVX 250
  • Polycom VVX 450
  • Polycom VVX 501
  • Polycom Trio 8500
  • Alcatel-Lucent M3
  • Alcatel-Lucent M5
  • Alcatel-Lucent M7
  • Alcatel-Lucent M8
  • Gigaset N510 IP PRO
  • Gigaset N670 IP PRO
  • Gigaset N720 IP PRO
  • Gigaset N870 IP PRO
  • Snom M700
  • Snom M900
  • Yealink W52P/W56P
  • Yealink W53P/W60P
  • Yealink W70B
  • Yealink W80

The information refers to the current firmware version.

Test the VA series as a VM on your system

Test the software telephone system in a VM environment without any obligation. Within 60 days you can use all the functions and features of the system without restriction and try them out extensively. We will be happy to assist you during your test phase.

The system can be installed on all known VMs (hypervisors).

Data for the installation and for the web interface

Please use the following access data to log in to the web interface:

User name: admin
Password: VA-Series

Overview of the technical data

Supported codecs:  G.711a, G.711u, GSM, G.729, G.722 HD, iLBC, G.723.1, G.726
Suitable hypervisors:vmware, KVM, Hyper-V, Proxmox, VirtualBox, Xen
Integrated operating system:yes, Linux Debian
Required CPU performance:min. 1.2 GHz (recommended)
Required hard disc space:         10 GB
ISDN and analogue capable:yes, via external gateways
Manufactured in:Germany 

Free licence for 4 extensions

You are welcome to use the telephone system for up to 4 extensions permanently and with the full range of functions. All you need for this is a PC and a virtual machine.

Please note that we do not provide support for the free version after the test phase.

However, you are welcome to use our online documentation and our how-to videos for installing and setting up your PBX system.