VoIP Auteldac 4
The VoIP Auteldac 4 (A4) is the world’s first ATEX
and IECEx Zone 1 & Zone 21 approved IP telephone.
Providing simple network connection without the need for
analogue convertors, extending VoIP access to arduous
industrial atmospheres and environmental extremes.
With only one voice and data infrastructure to install and
maintain, VoIP telephony saves time, money and call costs.
Certified for safe operation in hazardous areas, the
VoIP A4 body is made from carbon loaded glass filled
polyester. The elimination of moving parts ensures
a high level of reliability in industrial and hazardous
environments and enables ingress protection up to IP66.
The VoIP A4 telephone has a configurable relay output fitted
as standard, which may be used for ring strobe activation
or local speaker mute. An inductive coupler is fitted to aid
the hard of hearing. For hands-free telephone use, the
Auteldac 4 has the option of an ATEX approved headset.
Enclosure: (Wall mounted) Black carbon loaded glass-filled
Handset: Polycarbonate handset with conductive coating,
with coiled cord or stainless steel spiral cord (extended cord
Keypad: Weathersealed tactile digital keypad
Certified Operating Temperature: -20°C to +50°C
Relative Humidity: Up to 95% (non-condensing)
Weather Ingress protection: IP66 Curled cord, IP54 Steel
Connection type: Spring loaded cage clamps
Power Supply: External 24V min, 48Vmax dc or IEEE
Compliant Power-Over-Ethernet (PoE). Alternative B
(spare pairs) only, not data pair. Draws up to 7W.
Call set-up Protocol: Session Initiation Protocol (SIP)
(RFC 3261 compliant)
Codes & Audio: G.711 A-Law G.711 µ-Law G.722 G.729
G.723.1 MP-MLQ G.723.1 ACELP
Codec preference sequence, DTMF in band/out of band
(RFC2883), Configurable comfort tones (nation specific)
Security: Password protected
Quality of Service: Priority of IP Packets according to TOS
and DiffServ VLAN Priority according to IEEE8021.p/802.1q
Reliability: MTBF 53,000 hours
Redundancy: Supports up to 4 SIP proxys
Configuration: Via configuration file or on board password
protected web page server. Static IP address or DHCP.
Monitoring: Automatic fault reporting via email or Syslog
messaging. Real-time over TCP/IP proprietary Syslog
Audio Path Testing: Allows remote testing of handsets, to
verify that a phone is functioning acoustically. Can be run on
demand or on a scheduled basis, reporting its results via
Syslog and / or email.
Update Server: Configuration and Firmware update via
IP Address: Static IP provisioning or Dynamic Host
Configuration Protocol (DHCP)
ICMP: Internet Control Message Protocol for inbuilt ping test
Memory Dialling: Numbers or URIs (with comfort tones)
Configurable Call Lists: Max 20 entries which divert to next
in list if the call fails
External I/O: Single Relay contact pair rated for external
beacon or sounder. Configurable activation e.g. on ringing
cadence. Contact rating 5Amps @250Vac max.
Call Records: Via call description reports
Time/Date: Simple Network time Protocol with time zone
and daylight saving. Date format – European / US
Ringing: Configurable via configuration file or web page.
90db @ 1 metre typical. Configurable volume
Time Out: Enforces a fixed call maximum time limit
(variable) from lifting of the handset. User selectable.
Weight: approx. 3.2 kg