COMpact 3000 ISDN

Compact ICT system with up to 4 external lines (via ISDN), up to 8 subscribers (ISDN, IP, analogue) and ability to expand by one ISDN port or 2 analogue subscriber ports

1 BRI trunk line (PTMP or PTP)

Plug & Phone, easy and fast installation without a computer

Web interface for the configuration of the system under Windows, macOS and Linux

Central voicemail and fax system for 6 subscribers, message forwarding by e-mail, notification by call

Storage of voicemail and fax messages on optional SD card or USB memory

Your advantages in detail

Even the basic configuration of our COMpact 3000 ISDN surprises with amazing high-performance capabilities, considering the size of this small telephone system: With four analogue extensions, a phonebook for 400 entries, a central voicemail and fax system which automatically informs you about messages waiting via e-mail, RSS feed and a call, CTI support as well as connection capabilities for external storage devices, it’s perfectly equipped for all the needs of day-to-day work.

Should you want additional analogue extensions, yet another ISDN exchange interface or just a little more comfort with ISDN system phones, simply expand your COMpact 3000 ISDN with the according plug-in module. And for internal calls via computer network, simply activate the two integrated VoIP channels via our shop for function upgrades.

The ready-to-insert cabinet and step-by-step configuration even without a PC make installation and start-up child’s play. All further settings are done intuitively via the system’s web user interface. Latest circuit technology and smart energy management ensure that power consumption stays low under all operating conditions – that’s our contribution to protecting the environment … and your budget.

Compatible products

Features & technical data

Everything you need to know about our products comes now. Scroll down for more information.

System functions

  • Trunk line authorisations for reduction of costs and for multi-company operation
  • System profiles (8 configurations max.) switchable by internal clock or manually by phone (internal and external)
  • Call through for ISDN trunk lines
  • Boss-secretary function1
  • Direct line access
  • Bank holiday table for automatic switching of system profiles or wake-up calls
  • Call data management with max. 2,000 records
  • Call take-over (e.g. from integrated answering machine)
  • Group calls
  • Least Cost Routing with call by call in the local network
  • Call brokering, three-party conference internal / via exchange line / via 2nd call channel
  • Emergency calls, 10 numbers with special rights and priority
  • Open query / up to 10 on-hold positions
  • Parallel call, simultaneous calling of a 2nd target and priority
  • Private trunk line access with user-related password, usable from all extensions
  • Software interfaces
  • Call barring / exception lists, 10 each for incoming and outgoing calls
  • Power-safe mode
  • Voicemail and fax functions
  • Music on Hold with insertable announcement, loadable WAV file
  • Wake-up calls, 3 announcements switchable by time
  • Central phone book with 400 entries

VoIP telephony

  • High audio quality due to Echo Cancellation
  • Integration of external extensions (information on the location of the telephone is taken into account in an emergency call) and mobile clients

Voicemail and fax

  • 2 voicemail channels, thereof 1 fax channel
  • 6 voicemail and 6 fax boxes
  • Fax sending via the network (Windows 7/8/10)
  • Storage of the voice and fax messages on USB memory or SD card (not included)
  • Recording capacity (at 4 GByte storage): approx. 120 hours voice messages incl. announcements or approx. 3,500 fax pages
  • Message and fax forwarding via e-mail
  • Remote access of the voicemail boxes incl. voice guidance

Software interfaces

  • LAN TAPI (4 clients in scope of delivery)2
  • Sending of fax messages2

Installation and maintenance

  • Administration via web interface, secure access via https
  • System access local via Ethernet and remote via Internet
  • Selectable authorisation levels, password protected
  • Quick setup of the basic functions with configuration wizard
  • Plug&Phone, simple installation, ready-to-plug housing

Unlockable options

  • LAN TAPI (4 clients in scope of delivery)2
  • Sending of fax messages2
1 With COMfortel 1400 IP / 2600 IP / 3600 IP
2 Paid activation required



Operating voltage

230 V ±10 %, 50 Hz, external power supply with Euro plug

Power consumption 1

2.4 W 15 W

Exchange lines 1

2 S0 ports max., point-to-multipoint/point-to-point connection (PTMP/PTP, Euro-ISDN, DSS-1)

Analogue subscriber ports 1

max. 6 analogue terminals, symmetrical, pulse/tone dial, CLIP/CNIP

Range of the analogue ports

2 x 50 Ω, approx. 790 m at Ø 0.6 mm

Internal S0 port 1

max. 1 S0 port , point-to-multipoint connection (PTMP, Euro-ISDN, DSS-1)

Range of the internal S0 port

approx. 150 m

Internal UP0 port 1

max. 1 UP0 port , point-to-multipoint connection (PTMP, Euro-ISDN, DSS-1)

Range of the internal UP0 port

1.000 m max. at Ø 0.6 mm

VoIP subscribers 1

max. 8

VoIP channels (SIP acc. RFC 3261) 1

2 max.

VoIP codecs internal

G.722 (wideband), G.711, G.726, iLBC

PC connection

1 Ethernet port 10/100Base-T (10/100 MBit/s, Twisted Pair), full/half duplex, autonegotiation

External storage

SDHC card (16 GB max.) or USB memory

Printer and memory connection

USB host 2.0

Module slot



plastic, chassis with cover

Dimensions (w x h x d)

240 mm x 240 mm x 58.4 mm


approx. 740 g (system without expansion module), approx. 100 g (power supply)



Operating systems

Windows 7/8/10, macOS, Linux

Delivery Scope

  • Basic unit
  • Wall power supply incl. IEC cord with plug type CEE7/7 (Schuko)
  • Ethernet cable
  • ISDN cable
  • Drilling template
  • Dowels/screws
  • Installation Instructions and Setup Guide


COMpact 2a/b Module

Expansion for COMpact 3000 with two internal analogue ports for analogue terminals

COMpact ISDN Module

Extension for COMpact 3000 by a variable ISDN port for internal and external connection of ISDN devices

COMpact S0 Module

Adds one internal S0 port to COMpact 3000



Adapter for connecting a loudspeaker system to an analogue extension connection of an ICT system

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