The ICG Sigma-7 Backlit (BL) retractor-reel handset is similar to traditional aeronautical handsets in form factor and appearance, but is much simpler and more conventional in its use. The Sigma-7 BL offers features commonly found in office style multi-function handsets. When connected to an ICG Iridium system or CTU, a user has powerful PABX features and functions available. Special features such as backlit buttons and LCD display, noise-canceling microphone, speed dialing, last number redial and mute, make the Sigma-7 BL handset versatile yet convenient and simple to use. The Sigma-7 BL can be recessed into a drink rail or bulkhead. ICG offers an optional data jack (RJ-11) option located on the cradle for connection to a data modem and has a connection for an external ringer for drink rail mount locations.

The Sigma-7 BL has an internal magnetic stripe reader to support credit card calling and special function keys to provide enhanced features such as flash transfer and access to programming menus. The device connects to a 2-Wire "Tip and Ring" telephone circuit and is compatible with all communications systems that offer 2-Wire telecom circuits which meet standard CCITT specifications.

PN # 744000-10-1x standard long cradle 

PN # 744000-11-1x w/RJ-11 jack 

PN # 744000-20-0x short cradle w/remote reel 

PN # 744000-21-0x w/RJ-11 jack 

PN # 744000-00-0x no cradle w/ remote reel 

PN # 744000-00-4x no cradle w/ no conduit

Weight (Handset in Cradle): 0.92 Lbs (600g)

Polarity Sensitivity: None

Power Consumption: Less than 5 Watts at 28VDC

Retractor Reel Cord: 48 in (122 cm)

Fire Retardant: Far 25.853

EMI/RFI: DO-160D