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Your telephone system will be connected to one port on your managed switch, sourcing the SIP traffic, which needs to be configured to send a copy of all the SIP packets to another port, connected to one of the network cards of the Echo server.
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Your telephone system will be connected to one port on your managed switch, sourcing the SIP traffic, which needs to be configured to send a copy of all the SIP packets to another port, connected to one of the network cards of the Echo server.