The Asterisk USB Radio Interface (URI) Connection Guide is now available. It has connection information for Maxon and Icom commercial land mobile transceivers. Asterisk URI Connection Guide

DESCRIPTION
This process installs a complete Asterisk IP-PBX system with app_rpt radio nterface features. Because the full power of Asterisk enables linked radios to do much more than just communicate among themselves, we chose the EasyVoxBox package as a basis for the app_rpt installation. It provides the popular freePBX Asterisk web based configuration tool and other amazing utilities. Unlike most Asterisk packages, EasyVoxBox includes the complete source code and development environment for Asterisk. Because app_rpt is developing rapidly, including the source code allows us to provide a simple app_rpt update utility.

app_rpt_instructions.pdf

This is a interface for the Asterisk app_rpt radio control.

URI - USB Radio Interface

• Connect two-way radio to PC
• Fast and easy!
• $$ Very low cost $$
• USB Interface - no need to open PC case
• Open source: asterisk, app_rpt
• Connect to radio’s interface connector
• Optional configuration EEPROM
• High-quality full-duplex audio
• Optional high level op-amp
• 3 User I/Os

More information is available at:
http://dmkeng.com/Products.htm

Asterisk URI Connection Guide:

Asterisk URI Connection Guide

Yes! The USB FROG/OB is still around too.
http://app-rpt.qrvc.com/usbsoundfob.html
http://usbradio.org/