Intuitive user interface
High-resolution 4.3” TFT display with capacitive touch function
20 self-labelling function keys on the display incl. status signalling
HD audio quality thanks to wideband
Headset connection with EHS support
The COMfortel D-400 is the premium product of our standard SIP telephony offering. It has a clear design that is dominated by a large touchscreen and blends in well with any modern office environment. Its high-resolution 4.3” colour display with capacitive touch function is designed for intuitive operation and is context-specific. An all-round visible casing LED ensures that everyone can see you are on the telephone, even if you make calls by using a hidden headset. Incoming calls and missed calls are also displayed conspicuously.
The expansion options of the COMfortel D-400 prove its professional versatility: whether you use the COMfortel D-400 with its 20 digitally labelled and freely programmable function keys, displayed on the screen, or upgrade to 80 keys with the COMfortel D-XT20i key extension module – it’s all done via the two USB connections. It's the ideal companion for your office or home office.
The smallest COMtrexx appliance with the full range of Soft PBX features. Future-proof COMtrexx for expansion stages up to 40 users.
Fully modular ISDN/VoIP communication server for 19" racks; up to 38 exchange line channels and 112 subscribers, 15 module slots
Fully modular ISDN/VoIP communication server for 19" racks; up to 38 exchange line channels and 112 subscribers, 5 module slots
Future-proof PBX appliance with optional legacy interface for up to 250 users
Ultimate performance COMtrexx Appliance
Hardware independent soft PBX solution with up to 250 users and up to 250 parallel calls per system
Semi-modular, wall-mounted compact VoIP ICT system; 10 channels to the service provider and 16 subscribers max., 2 expansion slots
Fully modular wall-mounted VoIP communications server with up to 20 channels to the service provider, 50 subscribers max. and 5 slots
Fully modular rack-mounted VoIP communications server with up to 20 channels to service provider, 50 subscribers max. and 5 slots
Fully modular, expandable VoIP device for 19" racks with up to 32 channels to service provider and 112 subscribers
Large ICT all-rounder with traditional interfaces up to 150 users
Scalable extension – Maximum variety in business communications
Wallmount for phones of the COMfortel® D series
Bluetooth extension for the COMfortel® D-400
Minimalist design with professional sound
- End-of-Support: Sep. 2026
- End-of-Service: Sep. 2028
- End-of-Repair: Sep. 2028
PoE feed-in adapter for supplying power to PoE-enabled IP end devices via the Gigabit Ethernet connection
Highly ergonomic professional DECT headset for interference-free wireless communication
Everything you need to know about our products comes now. Scroll down for more information.
Base | Max | |
|---|---|---|
Power supply | Power over Ethernet (PoE according to IEEE 802.3af, Class 0) | |
Ethernet ports | 2 port Ethernet switch 10/100/1000 Base-T | |
USB ports | 2 | |
System connection | Ethernet 10/100/1000 Base-T | |
Headset | separate interface for corded and cordless speaker/microphone sets, also with EHS support | |
Operating elements | keypad with vanity code, 17 dedicated function keys, 4 soft keys, 20 freely programmable function keys on the screen | |
Display |
TFT colour display (4.3" / 10.9 cm, 480 x 272 pixels) with capacitive touch | |
LEDs | 6, some multi-coloured | |
Handset | wideband audio, electret-microphone, dynamical loudspeaker, hearing aid compatible | |
Hook switch | magnetically switching contact | |
Loudspeaker | 8 Ohm, Ø 52 mm | |
Case | plastic | |
Colour | black | |
Dimensions (w x h x d) | 238 mm x 160/125 mm x 145/195 mm | |
Weight | approx. 750 g | |
Compliance | CE, EN 55032, EN 55024, EN 62368-1 | |
The smallest COMtrexx appliance with the full range of Soft PBX features. Future-proof COMtrexx for expansion stages up to 40 users.
Fully modular ISDN/VoIP communication server for 19" racks; up to 38 exchange line channels and 112 subscribers, 15 module slots
Fully modular ISDN/VoIP communication server for 19" racks; up to 38 exchange line channels and 112 subscribers, 5 module slots
Future-proof PBX appliance with optional legacy interface for up to 250 users
Ultimate performance COMtrexx Appliance
Hardware independent soft PBX solution with up to 250 users and up to 250 parallel calls per system
Semi-modular, wall-mounted compact VoIP ICT system; 10 channels to the service provider and 16 subscribers max., 2 expansion slots
Fully modular wall-mounted VoIP communications server with up to 20 channels to the service provider, 50 subscribers max. and 5 slots
Fully modular rack-mounted VoIP communications server with up to 20 channels to service provider, 50 subscribers max. and 5 slots
Fully modular, expandable VoIP device for 19" racks with up to 32 channels to service provider and 112 subscribers
Large ICT all-rounder with traditional interfaces up to 150 users
Scalable extension – Maximum variety in business communications
Wallmount for phones of the COMfortel® D series
Bluetooth extension for the COMfortel® D-400
Minimalist design with professional sound
- End-of-Support: Sep. 2026
- End-of-Service: Sep. 2028
- End-of-Repair: Sep. 2028
PoE feed-in adapter for supplying power to PoE-enabled IP end devices via the Gigabit Ethernet connection
Highly ergonomic professional DECT headset for interference-free wireless communication
Our free Sales Configurator tool offers an easy and fast solution to efficiently project communication solutions and create project proposals.
Configure your solution
FONtevo offers greater vitality for nursing and residential homes
"Some of our residents are still very sprightly but others are dependent on support for every movement. Consequently, simple communication systems that the patient or the nurse, who is often under time pressure, can control intuitively are in demand. Our nurse call system, which is connected to an …
Caren P. Managing Director
Read more
Fully modular, expandable VoIP device for 19" racks with up to 32 channels to service provider and 112 subscribers
Fully modular rack-mounted VoIP communications server with up to 20 channels to service provider, 50 subscribers max. and 5 slots
High-level design – COMfortel D-600, the premium SIP device
Office or home office – the COMfortel D-400 SIP phone is the professional choice
Professional SIP-Phone – amazing range of premium functions despite almost entry-level price
The tough one: designed for challenging working environments
The elegant one: compact, well-designed, and powerful
Minimalist design with professional sound
Elegantly designed door intercom system for maximum operating comfort
