Lars Thrane LT-3100/LT-4100 SIP Setup

Documentation for the Lars Thrane LT-4100: LT-3100/LT-4100 SIP Setup. The LT-4100 provides two voice channels and Iridium data at 22 kbps up and 88 kbps down, with worldwide coverage and built-in GPS, aimed at professional maritime work.

You might need to put your SmartPhone in ‘Airplane’ mode and only activate Bluetooth. 

This configuration also works with the LT-4100.