COMfortel® C-400

Professional IP conference telephone with four wireless microphones, for small, medium and large meeting rooms

Optimal understanding due to 2 fixed and 4 wireless microphones

Best acoustic characteristics due to wideband audio

3 SIP accounts

Encrypted speech data transmission (SRTP)

VoIP codecs G.722 (wideband), G.711, G.726 and G.729

Your advantages in detail

The conference telephone is the best choice for your meeting room. The four wireless DECT microphones optimise the range of your system. So you guarantee that every participant in the conference would be understood perfectly.

The high audio quality ensures a natural speech transmission without interruptions.

Features & technical data

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

System and comfort features

Automatic display illumination
Ringtone, handset and hands-free speaker volume adjustable
Microphone mute
Calling number and name display (CLIP/CNIP) if registered in the local and the central phone book of the proprietary ICT system
10 programmable abbreviated dialling keys

Hands-free talking, full-duplex at the base unit
Connection and use with a PC via USB connection
Phone book, 200 entries local
Access to a central phonebook via LDAP

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IP Features

3 accounts
Date and time via NTP
Digest authentification (MD5)
High audio quality with echo cancellation and comfort noise generation (CNG)
HTTP/HTTPS webserver integrated

Mass roll outs via provisioning server (HTTP, HTTPS, FTP and TFTP)
Prioritisation of voice data (Diff Serv)
SIP compliant (RFC 3261)
STUN (UDP over NAT)
Tone dialling during a call (RFC 2833, SIP Info, In-Band)
Transport Layer Security (TLS)
Encrypted speech data transmission (SRTP), RFC 3711 and RFC 4568
VLAN support (IEEE 802.1q)
VoIP codec G.722 (wideband) with supporting hardware, e.g. COMpact ICT systems (firmware from 7.2), Asterisk or IP-Centrex solutions
VoIP codecs G.711μ-Law/a-Law, G.726 and G.729
VoIP codec preselection

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Communication platforms

Asterisk Solutions
IP-Centrex solutions, Hosted PBX

Base Unit	Base	Max
Power Supply	via separate PoE power supply
System connection	Ethernet 10/100/1000 Base-T
USB port	1x Micro USB
Power consumption	2.5 W	5 W
Display	illuminated LCD with 158 x 57 pixels, monochrome
LEDs	4, multi-coloured
Operating elements	keypad with vanity code, 8 function keys, 3 soft keys
Casing material	plastic, black
Dimensions (w x h x d)	272 mm x 67 mm x 340 mm
Weight	approx. 1,100 g
Security	CE

External microphones	Base	Max
Power supply	Ni-MH batteries, 2.4 V, 400 mAh
Transmission protocol	DECT 6.0
LED	1 LED, multi-coloured
Talk time	up to 6 h
Standby time	up to 70 h
Casing material (microphones)	plastic, black