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Cisco EA6500 
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This guide was created using a Cisco EA6500 (Linksys AC1750) series router.

 

How to Disable SIP ALG
^^^^^^^^^^^^^^^^^^^^^^^

Log into the router and navigate to Connectivity -> Administration -> Application Layer Gateway

Uncheck the following to disable SIP ALG:

* Enable SIP ALG

                                
Click the Apply button at the bottom of the page.  A reboot should not be necessary, but if you’re still experiencing issues then it is a good idea to try rebooting the router and testing again.


.. image:: ../../_static/images/firewall/fusionpbx_cisco_linksys.jpg
        :scale: 85%
