diff --git a/AUTHORS.md b/AUTHORS.md
deleted file mode 100644
index 99bde41e..00000000
--- a/AUTHORS.md
+++ /dev/null
@@ -1,20 +0,0 @@
-# Digital Voice Modem Host
-
-- Bryan Biedenkapp (https://github.com/gatekeep)
-- Natalie Moore (https://github.com/jelimoore)
-- Patrick McDonnell (https://github.com/W3AXL)
-
-- Build Chain and Helper Tools
-  - K4YT3X (https://github.com/k4yt3x)
-
-- Documentation Team
-  - Charles Bricker (https://github.com/ceb515)
-  - Connor Lovell (https://github.com/DevRanger)
-
-- Community Support Team
-  - Steven Jennison (https://github.com/sjennison)
-  - Charles Bricker (https://github.com/ceb515)
-
-## Special thanks to
-
-- Jonathan Naylor G4KLX (https://github.com/g4klx) and the MMDVM authors.
diff --git a/README.md b/README.md
index 3787bba0..84db4414 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,12 @@
 # Digital Voice Modem Host
 
-The DVM Host (dvmhost) software suite, provides the primary host computer implementation of a mixed-mode DMR, P25 and/or NXDN or dedicated-mode DMR, P25 or NXDN repeater system that talks to the actual modem hardware, and the networking core (dvmfne) that provides a centralized network service that interconnects DVM Host (dvmhost) and other endpoint applications allowing networked communications.
+The DVM Host (dvmhost) software suite, provides the a set of applications that, act as a primary host computer implementation of a mixed-mode DMR, P25 and/or NXDN or dedicated-mode DMR, P25 or NXDN repeater system that talks to the actual modem hardware, a TIA/V.24 standard interface (dvmdfsi) allowing communications to commercial P25 hardware, and the networking core (dvmfne) that provides a centralized network service that interconnects various DVM endpoint applications allowing networked communications.
 
 Please feel free to reach out to us for help, comments or otherwise, on our Discord: https://discord.gg/3pBe8xgrEz
 
 This project generates a few executables:
-- `dvmhost` the main executable, this is the host software that connects to the DVM modems (both repeater and hotspot) and is the primary data processing application for digital modes. [See configuration](#dvmhost-configuration) to configure and calibrate.
+- `dvmhost` host software that connects to the DVM modems (both repeater and hotspot) and is the primary data processing application for digital modes. [See configuration](#dvmhost-configuration) to configure and calibrate.
+- `dvmdfsi` TIA/V.24 standard interface application that connects to a V.24 interface board or UDP to allow for P25 DFSI communications with commercial P25 hardware.
 - `dvmfne` a network "core", this provides a central server for `dvmhost` instances to connect to and be networked with, allowing relay of traffic and other data between `dvmhost` instances and other `dvmfne` instances. [See configuration](#dvmfne-configuration) to configure.
 - `dvmcmd` a simple command-line utility to send remote control commands to a `dvmhost` or `dvmfne` instance with REST API configured.
 - `dvmmon` a TUI utility that allows semi-realtime console-based monitoring of `dvmhost` instances (this tool is only available when project wide TUI support is enabled!).
@@ -155,13 +156,16 @@ There is no other real configuration for a `dvmfne` instance other then setting
 ### dvmhost Command Line Parameters
 
 ```
-usage: ./dvmhost [-vhf] [--setup] [-c <configuration file>] [--remote [-a <address>] [-p <port>]]
+usage: ./dvmhost [-vhdf][--syslog][--setup][-c <configuration file>][--remote [-a <address>] [-p <port>]]
 
   -v        show version information
   -h        show this screen
+  -d        force modem debug
   -f        foreground mode
 
-  --setup   setup mode
+  --syslog  force logging to syslog
+
+  --setup   setup and calibration mode
 
   -c <file> specifies the configuration file to use
 
@@ -172,15 +176,32 @@ usage: ./dvmhost [-vhf] [--setup] [-c <configuration file>] [--remote [-a <addre
   --        stop handling options
 ```
 
+### dvmdfsi Command Line Parameters
+```
+usage: ./dvmdfsi [-vhf][--syslog][-c <configuration file>]
+
+  -v        show version information
+  -h        show this screen
+  -f        foreground mode
+
+  --syslog  force logging to syslog
+
+  -c <file> specifies the configuration file to use
+
+  --        stop handling options
+```
+
 ### dvmfne Command Line Parameters
 
 ```
-usage: ./dvmfne [-vhf][-c <configuration file>]
+usage: ./dvmfne [-vhf][--syslog][-c <configuration file>]
 
   -v        show version information
   -h        show this screen
   -f        foreground mode
 
+  --syslog  force logging to syslog
+
   -c <file> specifies the configuration file to use
 
   --        stop handling options
@@ -189,7 +210,7 @@ usage: ./dvmfne [-vhf][-c <configuration file>]
 ### dvmcmd Command Line Parameters
 
 ```
-usage: ./dvmcmd [-dvh][-a <address>][-p <port>][-P <password>] <command> <arguments ...>
+usage: ./dvmcmd [-dvhs][-a <address>][-p <port>][-P <password>] <command> <arguments ...>
 
   -d                          enable debug
   -v                          show version information
@@ -199,6 +220,8 @@ usage: ./dvmcmd [-dvh][-a <address>][-p <port>][-P <password>] <command> <argume
   -p                          remote modem command port
   -P                          remote modem authentication password
 
+  -s                          use HTTPS/SSL
+
   --                          stop handling options
 ```
 
diff --git a/src/dfsi/DfsiMain.cpp b/src/dfsi/DfsiMain.cpp
index 3fdcc15e..0c64b442 100644
--- a/src/dfsi/DfsiMain.cpp
+++ b/src/dfsi/DfsiMain.cpp
@@ -97,7 +97,7 @@ void fatal(const char* msg, ...)
 void usage(const char* message, const char* arg)
 {
     ::fprintf(stdout, __PROG_NAME__ " %s (built %s)\r\n", __VER__, __BUILD__);
-    ::fprintf(stdout, "Copyright (c) 2024 Patrick McDonnell, W3AXL and DVMProject (https://github.com/dvmproject) Authors.\n");
+    ::fprintf(stdout, "Copyright (c) 2024 Patrick McDonnell, W3AXL and DVMProject (https://github.com/dvmproject) Authors.\n\n");
     if (message != nullptr) {
         ::fprintf(stderr, "%s: ", g_progExe.c_str());
         ::fprintf(stderr, message, arg);
diff --git a/src/fw/hotspot b/src/fw/hotspot
index 8d6611ef..7840a3da 160000
--- a/src/fw/hotspot
+++ b/src/fw/hotspot
@@ -1 +1 @@
-Subproject commit 8d6611ef703abd74d08bce2afe46d0e09676383a
+Subproject commit 7840a3daf9cf8af1006e416c5b937abb860d134d
diff --git a/src/fw/modem b/src/fw/modem
index d79b1d7b..b1cc331d 160000
--- a/src/fw/modem
+++ b/src/fw/modem
@@ -1 +1 @@
-Subproject commit d79b1d7b8d4b175be86cd0e5dc844c6ca5ae6733
+Subproject commit b1cc331d941b90dc4628a90138531f44de1be6f7