| 29 Jul 2009 | IPLT Version 5.05 |
| 29 Jul 2009 | Release Notes for IPLT Version 5.05 |
| 30 Jul 2009 | MPLT Version 6.09 |
| 30 Jul 2009 | Release Notes for MPLT Version 6.09 |
| 23 Jul 2008 | PLT Version 2.03 for Windows NT |
| 23 Jul 2008 | Release Notes for PLT Version 2.03 |
| 27 Feb 2004 | MPLT Version 5.05 |
| 27 Feb 2004 | Release Notes for MPLT Version 5.05 |
| 13 Mar 2004 | PLT Version 1.10 |
| 13 Mar 2004 | Release Notes for PLT Version 1.10 |
| 13 Sep 2011 | MPLT Version 6.10 |
| 13 Sep 2011 | Release Notes for MPLT Version 6.10 |
| 13 Sep 2011 | IPLT Version 5.06 |
| 13 Sep 2011 | Release Notes for IPLT Version 5.06 |
| 20 Aug 2011 | PLT-H Version 2.06 |
| 20 Aug 2011 | Release Notes for PLT-H Version 2.06 |
| 26 Aug 2011 | AIU Version 1.04 |
| 23 Aug 2011 | Release Notes for AIU Version 1.04 |
| 13 Sep 2011 | MPLT Operator's Reference Manual V1.9 |
| 13 Sep 2011 | MPLT Script Language Reference Manual V2.2 |
| 13 Sep 2011 | MPLT User's Guide V1.9 |
| 03 Nov 2004 | MPLT/PTT Interface Specification V1.3 |
| 23 Nov 2007 | M4Net Operator's Manual V1.0 |
| 13 Sep 2011 | IPLT Operator's Reference Manual V2.3 |
| 13 Sep 2011 | IPLT Script Language Reference Manual V2.3 |
| 13 Sep 2011 | IPLT User's Guide V2.3 |
| 28 June 2004 | IPLT Interface Control Document V2.1 |
| 08 Sep 2003 | PLT Hardware Manual V1.3 |
| 23 Nov 2007 | PLT-H Hardware Manual V1.6 |
| 04 Oct 2002 | PLT 8-Way Diplexer Unit Hardware Manual V1.0 |
| 23 Nov 2007 | PLT Voice Codec Unit Manual V1.0 |