2N Indoor View - Page 51

2N® Indoor View User Manual
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SIP Transport Protocol– set the SIP communication protocol: UDP (default), TCP or TLS.
Lowest Allowed TLS Version– set the lowest TLS version to be accepted for device
connection.
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 for thedevicefor SIP signaling. A change of this
parameter will not be applied until thedeviceis 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.
Send Keep Alive Packets– set that thedeviceshall inquire periodically about the state of
the called station via SIP OPTIONS requests during the call (used for station failure
detection during the call).