Update pfsense section, add sla section, add images (#160)

* images add

* Update pfsense.rst

* Update pfsense.rst

* images add

* Create shared_line_appearance.rst

* Update additional_information.rst

* Update shared_line_appearance.rst

* Update shared_line_appearance.rst

* images add

* Update shared_line_appearance.rst

* Update shared_line_appearance.rst

* Update pfsense.rst

source/additional_information.rst

@@ -28,4 +28,5 @@ In the **Additional Information** section you will find topics related to Fusion
   additional_information/regex.rst
   additional_information/postgresql.rst
   getting_started/software_utilities.rst
+  additional_information/shared_line_appearance.rst
 

source/additional_information/shared_line_appearance.rst

@@ -0,0 +1,47 @@
+##############################
+Shared Line Appearance
+##############################
+
+Shared Line Apprearance(SLA) also known in older phone systems as a "Key System".
+
+
+FusionPBX Settings
+^^^^^^^^^^^^^^^^^^^
+
+FusionPBX Menu Advanced > SIP Profiles > edit a profile to enable SLA.
+
+.. image:: ../_static/images/additional_information/fusionpbx_multiple_reg_true.jpg
+        :scale: 85%
+
+
+* **name:** multiple-registrations
+* **value:** contact
+* **enabled:** true
+
+
+Yealink SLA
+^^^^^^^^^^^^^
+
+FusionPBX Menu Accounts > Device > Edit a specific device.
+
+.. image:: ../_static/images/additional_information/fusionpbx_shared_line_yealink.jpg
+        :scale: 85%
+
+* Line > Shared Line
+
+* Options: 0-Disabled (default), 1-Broadsoft SCA, 2-BLA
+        
+            
+
+
+Polycom SLA
+^^^^^^^^^^^^^^
+
+FusionPBX Menu Accounts > Device > Edit a specific device.
+
+.. image:: ../_static/images/additional_information/fusionpbx_polycom_shared_line.jpg
+        :scale: 85%
+
+* Line > Shared Line
+
+* Options: shared, private

source/firewall/firewall_devices/pfsense.rst

@@ -10,6 +10,11 @@ Menu -> NAT -> Advanced Outbound NAT (enabled)
 
 set static port to yes
 
+.. image:: ../../_static/images/firewall/fusionpbx_pfsense_firewall_outbound.jpg
+        :scale: 85%
+
+
+
 
 
 **Firewall Optimization - Conservative**
@@ -17,12 +22,15 @@ set static port to yes
 
 System -> Advanced -> Firewall NAT -> Firewall Optimization
 
-
 select Conservative
 
 
+.. image:: ../../_static/images/firewall/fusionpbx_pfsense_firewall_and_nat.jpg
+        :scale: 85%
+
+
 
-**Create Alias Ports in pfSense - Optional**
+**Create Alias Ports in pfSense**
 ----------------------------------------
 
 .. image:: ../../_static/images/firewall/fusionpbx_pfsense.png
@@ -53,9 +61,7 @@ select Conservative
 
 * After you are finished Click SAVE.
 
-
-
-**Configure pfSense Port Forwarding - Optional**
+**Configure pfSense Port Forwarding**
 -----------------------------------------
 
 .. image:: ../../_static/images/firewall/fusionpbx_pfsense2.png
@@ -87,8 +93,6 @@ select Conservative
 
 * Click SAVE when done.
 
-
-
 **Configure FusionPBX**
 -----------------------------
 
@@ -121,3 +125,9 @@ Edit the Internal Profile and add
 
 **Status >> SIP Status**
 Stop and Start the internal profile for the changes to take effect.
+
+
+.. note::
+
+   More information can be found at https://www.netgate.com/docs/pfsense/nat/configuring-nat-for-voip-phones.html
+