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In iSymphony each Core Server contains its own license which specifies the number of PBX Connections, Users, Queues and Concurrent User Connections that are allowed on the system. You can access the licensing section by selecting Settings->Licensing in the iSymphony Administration Interface.
You can activate and update your license within the iSymphony Administration Interface or if you are using the iSymphony FreePBX module you can do so from within the iSymphony FreePBX administration page.
In order to activate a license your server needs to be able to make outbound TCP connections to 3.license.getisymphony.com on port 49996.
The following command can be used to open the port when using IPTables:
The above command assumes that your server connects to the outside via eth0. If your network interface differs you will want to replace eth0 with the proper interface.
You can locate your currently installed license details in one of two places depending on if you are using the FreePBX module or not.
It is important to know when the maintenance period on your license is going to expire. Knowing your maintenance expiration date will allow you to determine if your license will support an upgrade to a newer version, and if you will be able to receive support from our staff for technical issues. See the Licensing and Purchasing FAQ for more information on what license maintenance provides.
There are two methods to view your license maintenance expatriation date.
If your server is running, and your license is installed, you can view your license maintenance expiration date in the license details sections of the iSymphony Administrator, or the FreePBX GUI. See Locating Your License Details above.