restructurized and added Debian 12 guide

README.md

@@ -1,26 +1,96 @@
 # Linux Fax Stack Setup (HylaFax & SIP)
 
-- ***This guide is WIP***
+Linux Fax Stack using Hylafax and t38modem.
-- Ubuntu 20.04 LTS VM (VirtualBox, LXC?)
-- **TODO: Test on Debian / RockPi / RaspberryPi**
-- **TODO: Test on Eventphone Infra** 
 
-<hr/>
+***THIS GUIDE IS WIP***
 
-## Setup t38modem
+This guide was created using information from the opalvoid wiki (http://wiki.opalvoip.org/index.php?n=Main.HomePage)
 
-- **TODO: Package t38modem with service files and config** 
+## Softwarestack
 
-## Opal
+### ptlib
+(legacy) library for doing a little bit of everything.
 
-- http://wiki.opalvoip.org/index.php?n=Main.HomePage
+### Opal
+Voice codec used by e.g. mumble.
+
+### t38modem
+Emulates a serial modem from SIP connetion
+
+### Hylafax
+Enterprise grade software, managing physical and emulated modems.
+
+Has some problems: https://github.com/lexbailey/compilerfax/blob/main/hylafax_is_broken
+
+## Operating Systems
+Unfortunately this software stack uses a lot of legacy software. Because of this, this guide was only tested on specific software versions
+
+### Debian 12 Bookworm
+For Debian 12, we´ll only install dependencies which are hard requirements.
+For this guide we'll use ptlib 2.18.6 and opal 3.18.6.
+
+#### Installing Requirements
+First we'll need some packages
+```bash
+apt-get install build-essential git wget pkg-config libssl-dev libsrtp2-dev -y
+```
+#### Download sourcecode
+Versions:
+- libpt (2.18.6) https://sourceforge.net/projects/opalvoip/files/v3.18 Cygni/Stable 6/
+- opal (3.18.6) https://sourceforge.net/projects/opalvoip/files/v3.18 Cygni/Stable 6/
+- t38mdem (4.6.2) https://github.com/hehol/t38modem/releases/tag/4.6.2
+
+#### ptlib
+```bash
+./configure
+make
+make install
+'''
+
+#### opal
+```bash
+./configure
+make -j5
+make runtest
+make install
+'''
+
+#### t38modem
+If you are getting error about `-1` not being able to be casted to a `long unsigned int` due to `-Wnarrowing` inside `dle.cxx`, you can add `-Wno-narrowing` after the `CPPFLAGS` in the Makefile to disable this error
+
+'''bash
+git clone https://github.com/hehol/t38modem
+cd t38modem
+make
+'''
+
+If running the t38modem executable, you should run these commands
+```bash
+cp /usr/local/lib/libpt.so.2.18.6 /lib
+cp /usr/local/lib/libopal.so.3.18.6 /lib
+```
+
+To install t38modem run
+```bash
+cp t38modem /bin/t38modem
+``'
+
+### Ubuntu 20.04 LTS
+Was tested on Ubuntu 20.04 LTS VM (VirtualBox, LXC?)
+
+You can relies heavily on http://wiki.opalvoip.org/index.php?n=Main.HomePage
+
+Versions:
+- libpt (2.18.6) https://sourceforge.net/projects/opalvoip/files/v3.18 Cygni/Stable 6/
+- opal (3.18.6) https://sourceforge.net/projects/opalvoip/files/v3.18 Cygni/Stable 6/
+- t38mdem (4.6.2) https://github.com/hehol/t38modem/releases/tag/4.6.2
+
+Follow http://wiki.opalvoip.org/index.php?n=Main.BuildingPTLibUnix and http://wiki.opalvoip.org/index.php?n=Main.HomePage **but**
 - Don't use `libavformat-dev` -> Compile error in Opal
-- https://sourceforge.net/projects/opalvoip/files/
+- Configure script needs `pkg-config` to be installed to find ptlib install
-- Version 3.18.6
+- On SourceForge downloads `.tar.bz2` files for *nix
-- **TODO: Test out other versions**
-- `.tar.bz2` files for *nix
 
-### Build PTLib
+#### Build PTLib
 
 - Version 2.18.6
 - Dependency of Opal, bundled with Opal source code (SourceForge)
@@ -31,7 +101,7 @@
 sudo apt install \
 	g++ git make autoconf libpcap-dev libexpat1-dev libssl-dev libsasl2-dev libldap2-dev \
 	unixodbc-dev liblua5.3-dev libv8-dev libncurses-dev libsdl2-dev \
-	libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev
+	libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev pkg-config
 ```
 
 - PTLib will be installed in the `/usr/local` tree -> set `PKG_CONFIG_PATH` to be findable (compile time)
@@ -50,7 +120,7 @@ make
 sudo make install
 ```
 
-### Build Opal
+#### Build Opal
 
 - Version 3.18.6
 - http://wiki.opalvoip.org/index.php?n=Main.BuildingOpalUnix
@@ -76,11 +146,11 @@ make
 sudo make install
 ```
 
-## t38modem
+#### t38modem
 
 - https://github.com/hehol/t38modem, Version 4.6.2
-  - Could also use https://github.com/T38Modem/t38modem, not as maintained
+  - https://github.com/T38Modem/t38modem could also be used, but seems to be not as maintained
-- If you are getting error about `-1` not being able to be casted to a `long unsigned int` due to `-Wnarrowing` inside `dle.cxx`, you can add `-Wno-narrowing` to the `CPPFLAGS` in the Makefile to disable this error
+- If you are getting error about `-1` not being able to be casted to a `long unsigned int` due to `-Wnarrowing` inside `dle.cxx`, you can add `-Wno-narrowing` after the `CPPFLAGS` in the Makefile to disable this error
 
 ```bash
 cd t38modem-x.y.z/
@@ -90,12 +160,13 @@ sudo cp ./t38modem /usr/local/bin
 
 - t38modem can only find Opal if `LD_LIBRARY_PATH` and `PTLIBPLUGINDIR` are environment variables to the program
 
-### Init script
+#### Init script
 
 - To automatically start t38modem, you need to create Systemd services, as well as start and stop scripts
 - script is adapted from https://web.archive.org/web/20111231021042/https://www.foriamroot.org/hylafax-6-0-debian-or-ubuntu-t38modem-1-0-asterisk-1-6/
 - `sudo mkdir -p /etc/t38modem/bin/`
 
+## Using t38modem (requires systemd)
 ```bash
 #!/bin/bash
 # /etc/t38modem/bin/run
@@ -252,3 +323,8 @@ FaxMaster: $USER # replace with fax admin account
 ## FaxDispatch
 
 - https://legacy.hylafax.org/content/Advanced_Permissions_with_6.0
+
+## TODO
+- **TODO: Test on Debian / RockPi / RaspberryPi**
+- **TODO: Test on Eventphone Infra**
+- **TODO: Package t38modem with service files and config**