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UC500 - sccp fxs with zone-based firewall

I configure a UC500 with zone-based firewall. After that the fxs ports cannot be registered as sccp. I run the "show sccp all" and the cause code for the error is "TCP_CONN_ERROR". Any help?

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Re: UC500 - sccp fxs with zone-based firewall

Make sure you allow every interface with voice to have tcp 2000 open to the ip address in your "ip source-address" command in telephony-service.

-nick

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