Configuration manual for 2N IP intercoms
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SIP Transport Protocol– set the SIP communication protocol: UDP (default), TCP or TLS.
Lowest Allowed TLS Version –define the lowest TLS version to be connected to the
devices.
Verify Server Certificate – verify the SIP server public certificate against the CA
certificates uploaded in the device.
Client Certificate –specify the client certificate and private key used for verifying the
intercom’s authority to communicate with the SIP server.
Local SIP Port– set the local port to be used for SIP signalling. The parameter is not
applied until the intercom is restarted. The default value is 5060.
PRACK Enabled– enable the PRACK method for reliable confirmation of SIP messages
with codes 101–199.
REFER Enabled–enable call forwarding via the REFER method.