Added following snippits about Asterisk

* A Basic Asterisk server for internal calling with IVR, curl triggers and message playback
* A Asterisk server to act as a bridge between a Bluetooth phone (as in/out bound route)
* A Node-Red Subflow to create a call between extensions using ARI

Linux/Config-Examples/Asterisk-basic-server/ReadMe.md

@@ -0,0 +1,38 @@
+# Basic asterisk sever
+Go [Here](../../Docs/Setup-Asterisk-Server.md) to read about how to set it up
+
+
+**Config files that are empty**  
+these are just here to suppress errors
+* ```acl.conf```
+* ```ccss.conf```
+* ```cdr.conf```
+* ```cel.conf```
+* ```features.conf```
+* ```manager.conf``` 
+* ```pjproject.conf```
+* ```pjsip_wizard.conf```
+
+
+
+**Config files for basic usage**  
+If a config file does not have a comment, it does not require any tweaking  
+`*` Must be updated for each (new) extension  
+`**` Must be updated if (new) extension if a voip client needs to connect ({Soft}phone) or needs to be connected to (Homeassistant)
+* ```asterisk.conf```
+* ```extensions.conf``` Dial plan for extensions `*`
+* ```indications.conf``` Settings for dial tones
+* ```logger.conf```
+* ```modules.conf``` If not all functions are used you can disable some modules  
+* ```pjsip.conf``` Sets listening for PJSIP and loads sub configs
+* ```pjsip.extension.conf``` Defines the extension the credentials for the extensions `**`
+* ```pjsip.aor.conf``` Sets maximum connections for an extension `**`
+* ```pjsip.auth.conf``` Sets the credentials for the extensions`**`
+* ```udptl.conf```
+
+
+
+**Config files for use with ARI**  
+* ```ari.conf``` ARI basic config and credentials (Make sure to update this)
+* ```http.conf```  Settings for the integrated webserver for ARI
+* ```stasis.conf``` (Just here to suppress errors)