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Emcon and SST Brand TEMPEST VoIP Phone

Cisco 8841 VoIP Phone

With this TEMPEST version of the Cisco IP Phone 8841, you can increase personal productivity through an engaging user experience that is both powerful and easy-to-use while meeting your TEMPEST requirements.

The Cisco 8841 IP Phone combines an attractive new ergonomic design with wideband audio for crystal clear voice communications, “always-on” reliability, encrypted voice communications to enhance security, and access to a comprehensive suite of unified communication features from Cisco on-premises and hosted infrastructure platforms and third-party hosted call control.

The Secure Systems division of Spectrum Control offers global support. Below you will find links to North American and European office locations which offer TEMPEST product and service support.

TEMPEST 7975 VoIP Phone

SCCP and SIP Signalling Protocols
TIA 920 for VoIP Wideband Response
802.1x Multi Support with EAPol Pass-Through
G.722, G711a, G711μ, G.729a and iLBC Voice Codecs
SNMPv2 and LDAP3 Standard Directory
DHCP Client and Manual IP Addressing
802.1Q/p QoS Standard


100FX SC fibre Ethernet to LAN
100FX SC fibre Ethernet to PC

Battery Li-ION Smart Battery 4200 mAh

Auto-switching 90-230VAC
Max Power 65 Watts
Standby 0.5W
Input: 100-240 VAC, 50/60 Hz

Physical Specifications

Height: 24.5cm (9.6”)
Width: 25.0cm (9.8”)
Depth: 20.8cm (8.2”)
Weight: 2.7kg (5.95 lbs configuration dependent)


Secure Real-time Transport Protocol (SRTP)
Secure Signalling and Media with AES-128
X.509v3 Certificate Device Identity

Environmental Specifications 

Operating: 0° to 35°C/-32° to 95°F
Humidity: 10 to 95% RH non-condensing

Security Accreditations  This device is certified to NSTISSAM TEMPEST/1-92, Level I; CID09/15A, Level I; and SDIP-27/2. Level A (providing the equipment and associated systems are installed to the requirements identified in SDIP-29).