COMmander® 6000

Full modular communication server (ISDN, VoIP) for seamless VoIP integration with up to 38 trunk lines, up to 112 subscribers and …

Up to 38 external calls simultaneously via ISDN and/or VoIP

Up to 112 VoIP, ISDN and analogue subscribers

Up to 64 VoIP channels simultaneously, of which 38 can be configured for external use (internet telephony)

System telephony with digital VoIP and ISDN telephones out from the COMfortel® series

Remote extensions with COMfortel® 1400 IP, 2600 IP and 3600 IP, as well as with mobile VoIP clients/softphones

Features & technical data

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System functions

  • Trunk line authorisations for reduction of costs and for multi-company operation
  • System profiles (10 configurations max.) switchable by internal clock or manually by phone (internal and external)
  • Door terminal to exchange line calls (pharmacy function)
  • Automatic system-wide exchange line request
  • Busy-on-busy for internal and external calls, dynamical applicable for logged-in Call Agents
  • Call through for ISDN and VoIP trunk lines
  • Boss-secretary function
  • Direct line access
  • Speaker announcement (Intercom) to system telephones (single user and groups)
  • Bank holiday table for automatic switching of system profiles or wake-up calls
  • Call data printout (hotel) via network (PCL3)
  • Charge data management with max. 18,000 records
  • Call take-over (e.g. from integrated answering machine)
  • Group caller lists
  • Group functions with intelligent ringing schemes (ACD feature for Call Centres)
  • ISDN features such as CLIP, CW, AOC, CF, CCBS
  • Least Cost Routing Soft-LCR for VoIP, ISDN and POTS
  • Call brokering, three-party conference internal / via exchange line / via 2nd call channel
  • Emergency calls, 10 numbers with special rights and priority
  • Open query
  • Parallel call, simultaneous calling of a 2nd target and priority
  • Pick-up specific/global
  • Pick-up with pre-check
  • Call diversion, follow me internal, cascadable
  • Protection against attacks with blocking, black lists, monitoring
  • Software interfaces
  • Call barring / exception lists, 10 each for incoming and outgoing calls
  • Announcement before answering unconditional / on busy, 10 announcements can be stored
  • Flexible rework time for Call Centres
  • Voicemail and fax functions
  • Waiting field for up to 38 simultaneous incoming calls
  • Music on Hold with insertable announcement, loadable WAV file

SIP convenience features for standard SIP phones

  • SIP-BLF, Busy Lamp Field acc. to RFC 4235
  • Pick-up pre-check
  • SIP-MWI (Message Waiting Indication), monitoring of the central voicemail and fax boxes acc. to RFC 3842
  • SIP text messages acc. to RFC 3428
  • Auto provisioning and status LEDs

ISDN features

  • Call Waiting (CW)
  • Presentation of the forwarder's number (RgN)
  • Destination number presentation to the caller (COLP) and presentation restriction of the destination number to the caller (COLR)
  • Number (CLIP) and name (CNIP) presentation
  • Automatic recall on busy (CCBS) and no response (CCNR)
  • Presentation restriction of the own calling number (CLIR)
  • Call charge information (AOCE/AOCD)
  • Call Forwarding on busy (CFB), no reply (CFNR), unconditional (CFU), of a DDI (CD (PR))
  • Transfer of customer-specific calling number information with outgoing calls (CLIP no screening)

Central address books

  • 2,000 contacts incl. photo, addresses and phone numbers
  • Separate address books for departments and multi-company operation
  • Comfortable operation via COMfortel system phones
  • Security access levels for administrator and user
  • Address book provisioning via LDAP
  • Usage of Google Contacts
  • Import of VCF and CSV files

Building and home automation

  • Max. 24 actuators, e.g. a/b Switching Modules or via http with IP switching relays
  • KNX/EIB integration via IP, e.g. with GIRA HomeServer
  • Time or key controlled operation of heating systems, aircondition lighting or blinds
  • Full integration of VoIP and analogue door intercom systems
  • Support for IP video intercom systems

VoIP telephony

  • 2 VoIP channels (external/internal) included, expansion to 64 VoIP channels possible
  • Dynamic internal/external VoIP channels
  • Fax over IP external (T.38 acc. ITU-T)
  • High audio quality due to Echo Cancellation
  • Remote extensions and mobile VoIP clients integration
  • MSNs in SIP-Trunk simultaneously
  • Call forwarding on busy (CFB), no reply (CFNR), unconditional (CFU) at carrier trunk, configuration dependent
  • Encrypted signalling (SIPS) and data transmission (SRTP) with 8/16VoIP (R-)Module(s)
  • Transfer of customer-specific calling number information with outgoing calls (CLIP no screening)

Voicemail and fax

  • 2 voicemail channels and 4 voicemail boxes included, expansion to up to 16 voicemail and fax channels with up to 120 boxes each
  • Fax sending via the network (Windows 7/8/10 and macOS)
  • Recording capacity (at 4 GByte storage): approx. 120 hours voice messages incl. announcements or approx. 3,500 fax pages
  • Call acceptance and individual announcements, depending on calling number, time and call type
  • Comfortable operation via corded COMfortel system phones
  • Substitute function
  • Message and fax forwarding via e-mail
  • Remote access of the voicemail boxes incl. voice guidance

UCC functions

  • Softphone-functions for Windows, Android und iOS
  • Call setup and ending via the PC, incl. Outlook plug-in
  • Presence management with automatic status detection
  • Instant messaging for a better sharing of information
  • Contact data for local users and out of external data bases
  • Screen sharing for convinient cooperation
  • „Federation" as networking concept between external sites and companies
  • Platform independent (Windows, Mac, iOS, Android)

Supplementary smartphone apps

  • COMfortel Mobile Business – seamless integration in iOS and Android, signalling of the business number, full flexibility, always reachable
  • PBX Manager with switching of call forwardings log-in/-out in groups, retrieving of messages

Software interfaces

  • Recalling call data via SFTP
  • LAN TAPI (8 clients in scope of delivery)
  • Online name search (reverse search), adaptable
  • PBX Control API, e.g. retrieve caller lists, call forwarding ON/OFF, configuration switching, sending of fax/voicemail, switching relays, alarm status (start, acknowledgment, timeout), hotel (room status, call list, wake-up call) 

Installation and maintenance

  • Note: System activation by specialised dealer necessary (costs possible)
  • Administration via web interface, secure access via https
  • System access local via Ethernet and remote via Internet
  • System software update via local or remote PC upload
  • Central configuration of IP telephones (security by using certificates)
  • Auto provisioning for telephones of other brands
  • Easy configuration with COMfortel IP Editor
  • Selectable authorisation levels, password protected
  • IPv6 support

Unlockable options

  • 8 additional VoIP channels for 8/16VoIP (R-)Modules, up to 64 VoIP channels possible
  • 8 additional voicemail/fax channels, 40 additional voicemail and 40 additional fax boxes for the VMF (R-)Module
  • Auto Attendant
  • Call through connections (all lines), 4 simultaneous connections included
  • Call data records (up to 18,000), 6,000 included
  • Hotel function
  • LAN TAPI (for up to 112 subscribers), 8 included
  • Least Cost Routing Soft-LCR (up to 112 subscribers), 8 incl.
  • PBX Call Assist
  • Project assignment of calls
  • SIP comfort package brand plus included auto provisioning for standard SIP phones
  • System activation (necessary for operation of the system)

Trunk lines 1



PRI port, point-to-point connection (PTP, Euro-ISDN, DSS-1)

1 max.

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

16 max.

VoIP channels (SIP acc. RFC 3261), point-to-multipoint/point-to-point connection (SIP trunking) 2

38 max.

VoIP codecs trunk line

 G.711 (optional: G.723.1, G.726, G.729, iLBC)

Subscriber ports 1



S0 ports, point-to-multipoint connection (PTMP, Euro-ISDN, DSS-1)

32 max.

Range of the internal S0 ports

approx. 150 m at Ø 0.6 mm

  UP0 ports , point-to-multipoint connection (PTMP, Euro-ISDN, DSS-1)

32 max.

Range of the internal UP0 ports

approx. 1,000 m at Ø 0.6 mm

Analogue ports, symmetrical, pulse/tone dialling, CLIP/CNIP capable

32 max.

Range of the analogue ports

2 x 50 Ω, approx. 790 m at Ø 0.6 mm

VoIP subscribers

112 max.

VoIP channels (SIP acc. RFC 3261) 2

64 max.

VoIP codecs internal

G.711 (optional: G.723.1, G.726, G.729, iLBC)

Voicemail and fax system 1



Voicemail and fax channels

16 max.

Voicemail and fax boxes

120 max. each

Fax standard

T.30/T.38 acc. to ITU-T

Door and relay connections 1



Door connections acc. to FTZ 123 D12-0

8 max.

Door bell inputs

16 max.

Door opener relay

8 max.

Switching relays

24 max., thereof 1 - 2 per door station

Maximum load door opener relay

30 V AC, 1 A max.

Additional connections 1



Ethernet port 10/100 Base-T (10/100 MBit/s, twisted pair)


USB host V2.0 for printer and memory connection


audio output for announcements

4 max.

Modul slots


Technical data



Operating voltage

230 V ±10 %, 50 Hz

Power consumption

7.1 W min., 75 W max.


plastic, chassis with cover

Dimensions (w x h x d)

220 mm x 354 mm x 142 mm

Weight (w/o modules)

approx. 2,400 g



Supported operating systems

Windows 7/8/10, macOS, Linux

  • 1 Possibly depending on the configuration of the telephone system
  • 2 VoIP channels can be configured individually internally/externally or as voicemail/fax channels

Delivery Scope

  • Basic unit
  • Ethernet cable
  • USB cable
  • Installation Instructions and Setup Guide

Datasheet download


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