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You will need 2 PBX servers of the same model with identical hardware including analog and digital cards. Each server must have its own set of licenses for any commercial modules used. |
This article assumes the following:
You have an existing a PBX system that will be your primary server.
- You have an identical PBX system equally licensed that will act as the warm sparebe your secondary server.
- Both servers have identical Analog/PRI/BRI hardware (if used).
- The two servers can communicate on an IP level with each other on port 22.
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