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Technical Information on VoIP, RoIP, and D-STAR Repeater
Controllers and Linking Practices
Maintained by Kevin Custer W3KKC
There are several different types of VoIP (Voice over Internet Protocol) and RoIP (Radio over Internet Protocol) linking systems for commercial and amateur radio applications. Below are a few of the more popular systems and links to more in-depth information on them.
Includes LINUX distributions like
"ACID and DIAL"
There's even a DIAL image for the Raspberry Pi 2.
|Bridging Systems Interface - a standard protocol from DHS OIC's SAFECOM program|
|Mutualink for radio / resource sovereignty and peer-to-peer|
List of support groups and email lists:
|Official app_rpt email list|
|ARM AllStar Yahoo Group Group especially for the ARM processor based hardware used for AllStar Link.|
List of commercially made USB radio adapters:
|Repeater Builder USB RIM by Scott Zimmerman N3XCC|
|DMK - URIx Offsite Link|
|Masters Communications RA-35 (available in kit form) Offsite Link|
USB Device Conversion articles:
|SYBA UAUD71 CM119 based USB sound adapter conversion article by Kevin Custer W3KKC|
|SYBA UAUD (small) CM119 based USB sound
adapter conversion article by Kevin Custer W3KKC
Not for hardware COS and CTCSS - DSP use only!
|StarTech CM108 based USB sound adapter conversion article by Kevin Custer W3KKC|
|Chuck Kelsey's Custom Printed Circuit Board for
USB FOBs by Kevin Custer W3KKC
Make professional looking radio interfaces using WB2EDV's custom board.
|Generic CM108-based USB sound
adapter conversion article Author unknown; likely Steve RoDgers WA6ZFT
A local copy may be found here.
|Theory of the app_rpt application and how it's used with Asterisk by Steve RoDgers WA6ZFT and Jim Dixon WB6NIL|
|C-Media CM119 Datasheet Donated by Kevin Custer W3KKC|
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This page initially created 20-November-2010 Kevin Custer W3KKC
This web site, the information presented in and on its pages and in these modifications
and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer
W3KKC and multiple originating authors. All Rights Reserved, including that of paper
and web publication elsewhere.