\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{liveincan}
\pdfinfo{
  /Title (asterisk.pdf)
  /Creator (Cheatography)
  /Author (liveincan)
  /Subject (Asterisk Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{FF5B14}
\definecolor{LightBackground}{HTML}{FFF4F0}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Asterisk Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{liveincan} via \textcolor{DarkBackground}{\uline{cheatography.com/51698/cs/36389/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}liveincan \\
  \uline{cheatography.com/liveincan} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 20th January, 2023.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{2.72 cm} x{5.28 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Common configuration files}}  \tn
% Row 0
\SetRowColor{LightBackground}
sip.conf & Configure trunks \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
users.conf & Configure users \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{extensions.conf} & Dialplan configuration \tn 
% Row Count 4 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{iax.conf} \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
logger.conf & Files and log levels \tn 
% Row Count 6 (+ 1)
% Row 5
\SetRowColor{white}
\seqsplit{confbridge.conf} & Conference bridge configuration \tn 
% Row Count 8 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{modules.conf} \tn 
% Row Count 9 (+ 1)
% Row 7
\SetRowColor{white}
\seqsplit{musiconhold.conf} & Music on hold configuration \tn 
% Row Count 11 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\seqsplit{voicemail.conf} & Voicemail configuration \tn 
% Row Count 13 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.28 cm} x{4.72 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Asterisk Console Commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
asterisk -r{[}vvvv{]} & Enter Asterisk console {[}verbose level{]} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
sip show channels & Shows active channels \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
sip show registry & Display trunk status \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
sip show peers & Show peer status \tn 
% Row Count 7 (+ 1)
% Row 4
\SetRowColor{LightBackground}
core set verbose X & Changes the console verbosity level \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
core show translation & Displays transcoding latency between codecs \tn 
% Row Count 11 (+ 2)
% Row 6
\SetRowColor{LightBackground}
reload & Reread the configuration files, without restarting Asterisk \tn 
% Row Count 14 (+ 3)
% Row 7
\SetRowColor{white}
core restart now & Force Asterisk to restart immediately \tn 
% Row Count 16 (+ 2)
% Row 8
\SetRowColor{LightBackground}
core restart gracefully & Restarts Asterisk when calls are complete. New calls are denied \tn 
% Row Count 19 (+ 3)
% Row 9
\SetRowColor{white}
core restart when convenient & Restarts Asterisk when calls are complete. New calls are accepted \tn 
% Row Count 22 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.96 cm} x{5.04 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Pattern Matching}}  \tn
% Row 0
\SetRowColor{LightBackground}
X & Digit from 0 to 9 \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
Z & Digit from 1 to 9 \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
N & Digit from 2 to 9 \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
. & Wildcard - one or more characters \tn 
% Row Count 5 (+ 2)
% Row 4
\SetRowColor{LightBackground}
! & Wildcard - zero or more characters \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
{[} {]} & Numeric Range \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\{\{bt=3\}\}{\bf{Examples}} & \{\{bt=3\}\} \tn 
% Row Count 10 (+ 2)
% Row 7
\SetRowColor{white}
\_1XXX & match from 1000 to 1999 \tn 
% Row Count 11 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\_12{[}0-5{]}X & match from 1200 to 1259 \tn 
% Row Count 12 (+ 1)
% Row 9
\SetRowColor{white}
\_12{[}015{]} & match 120, 121 and 125 \tn 
% Row Count 13 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{{\bf{Complex Match - All Numbers from 4683 to 5132}} \newline \_468{[}3-9{]} ; 4683-4689 \newline \_ 469X ; 4690-4699 \newline \_ 4{[}7-9{]}XX ; 4700-4999 \newline \_ 50XX ; 5000-5099 \newline \_ 51{[}0-2{]}X ; 5100-5129 \newline \_ 513{[}0-2{]} ; 5130-5132}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.28 cm} x{2.66 cm} x{2.66 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Dialplan Apps}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Application}} & {\bf{Description}} & {\bf{Example}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Answer() & Answer immediately &  \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{Playback(music)} & Play music &  \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{Dial(type/identifier}, timeout) & Calls the type identifier number for timeout seconds & Dial(SIP/TrunkName/\$\{EXTEN:3\}, 20) \tn 
% Row Count 10 (+ 4)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{VoiceMail(user@context)} & Calls the user's voicemail user on context context & VoiceMail(\$\{EXTEN\}@mycontext) \tn 
% Row Count 14 (+ 4)
% Row 5
\SetRowColor{white}
\seqsplit{VoiceMailMain(user@context)} & Allows you to check your voicemail & \seqsplit{VoiceMailMain(\$CALLERID(num)@mycontext)} \tn 
% Row Count 17 (+ 3)
% Row 6
\SetRowColor{LightBackground}
\seqsplit{Goto(context}, extension, priority) & Allows you to change context and/or number & \seqsplit{Goto(otherContext}, \$\{EXTEN:2\}) \tn 
% Row Count 20 (+ 3)
% Row 7
\SetRowColor{white}
Hangup() & Hang up &  \tn 
% Row Count 21 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\seqsplit{NoOp(message)} & Does nothing, useful for debugging & NoOp(Call from \$\{CALLERID(num)\} to \$\{EXTEN\}) \tn 
% Row Count 25 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.8 cm} x{5.2 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Dialplan variables}}  \tn
% Row 0
\SetRowColor{LightBackground}
\$\{EXTEN\} & The number called \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\$\{CONTEXT\} & The name of the current context \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\$\{CALLERID(name)\} & The name of the caller \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\$\{CALLERID(num)\} & The caller's number \tn 
% Row Count 7 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.292 cm} x{3.116 cm} x{3.192 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Dialplan Format}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{Contexts} & Keeps different sections of the dialplan independent of each other & {[}users{]} \tn 
% Row Count 5 (+ 5)
% Row 1
\SetRowColor{white}
\seqsplit{Extensions} & The series of steps (each containing an application) defined for that extension & exten =\textgreater{} 100,1,Dial(SIP/alice) \tn 
% Row Count 10 (+ 5)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{Priorities} & An extension can have multiple steps (priorities), which are executed sequentially. & \{\{nobreak\}\}exten =\textgreater{} 100,1,Playback(tt-weasels)\{\{nl\}\} exten =\textgreater{} 100,2,Voicemail(10)\{\{nl\}\} exten =\textgreater{} 100,3,Hangup() \tn 
% Row Count 17 (+ 7)
% Row 3
\SetRowColor{white}
~n \seqsplit{priority} & Automatically increases a priority's value by 1, & \{\{nobreak\}\}exten =\textgreater{} 100,1,Playback(tt-weasels)\{\{nl\}\} exten =\textgreater{} 100,n,Voicemail(10)\{\{nl\}\} exten =\textgreater{} 100,n,Hangup() \tn 
% Row Count 24 (+ 7)
% Row 4
\SetRowColor{LightBackground}
same =\textgreater{} \seqsplit{operator} & Enables you to avoid writing the extension on each line, as long the extension remains the same. & \{\{nobreak\}\}exten =\textgreater{} 100,1,Playback(tt-weasels)\{\{nl\}\} same =\textgreater{} n,Voicemail(10)\{\{nl\}\} same =\textgreater{} n,Hangup() \tn 
% Row Count 31 (+ 7)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{1.292 cm} x{3.116 cm} x{3.192 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Dialplan Format (cont)}}  \tn
% Row 5
\SetRowColor{LightBackground}
\seqsplit{Applications} & the action that will be performed on the current channel. & exten =\textgreater{} 100,1,Dial(SIP/alice) \tn 
% Row Count 4 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Manipulating Variables}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Variable format: {\bf{\$\{variable\_name{[}:offset{[}:length{]}{]}\}}} where} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{\{\{fa-bolt\}\} {\bf{offset:}} how many digits to skip (optional)} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{\{\{fa-bolt\}\} {\bf{length:}} number of digits to return (optional)} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{{\bf{Examples:}} Assuming we've dialed 918005551234} \tn 
% Row Count 7 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{1. Remove the first character of extension, save in "number" variable.} \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{~ exten =\textgreater{} \_9X.,1,Set(number=\$\{EXTEN:1\})} \tn 
% Row Count 11 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{2. Use a negative offset number to remove everything before the last four digits} \tn 
% Row Count 13 (+ 2)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{~ exten =\textgreater{} \_9X.,1,Set(number=\$\{EXTEN:-4\})} \tn 
% Row Count 15 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{3. Limit the number of characters from our offset position and only save 555} \tn 
% Row Count 17 (+ 2)
% Row 9
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{~ exten =\textgreater{} \_9X.,1,Set(number=\$\{EXTEN:5:3\})} \tn 
% Row Count 19 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{4. The length value can also be used with a negative offset to save 555} \tn 
% Row Count 21 (+ 2)
% Row 11
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{~ exten =\textgreater{} \_9X.,1,Set(number=\$\{EXTEN:-7:3\})} \tn 
% Row Count 23 (+ 2)
% Row 12
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{5. Negative length value (-1) will remove \# sign from the end of the string.} \tn 
% Row Count 25 (+ 2)
% Row 13
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{~ exten =\textgreater{} \_XXXX\#,1,Set(pin=\$\{EXTEN:0:-1\})} \tn 
% Row Count 27 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}