PLANET ICF-1700 - Manual (Page 104)

Signal Key Set the key for signal encryption.
Media Key Set the key for RTP encryption.
Local port Set sip port of each line.
Enable Subscribe Enable the option, the phone will receive the notify
from the server.
Enable Keep
Authentication Enable or Disable. Keep Authentication. If it is enabled,
system will take the last authentication field which is
passed the authentication by server to the request
packet. It will decrease the server’s repeated
authorization work
NAT Keep Alive If some servers refuse to register with too short interval
time and have no packets sending to device in private
network to keep NAR alive, you could set this function
ON. It needs to set the keep alive interval time less
than the NAT server’s.
Enable Via rport Enable or disable system to support RFC3581. Via
rport is a special way to realize SIP NAT.
Enable PRACK Enable/Disable SIP PRACK function (basically is used
at). Suggest using the default configuration.
Long Contact Set more parameters in contact field, connect with
SEM server.
Enable URI Convert Convert # to %23 when send the URI.
Enable DNS SRV Support DNS looking up with _sip.udp mode
Ban Anonymous Call Set to ban anonymous Call.
Backup Server port Configure the backup server port.
RFC Protocol Edition Select SIP protocol version to adapt for the SIP server
which uses the same version as you select. For
example, if the server is CISCO5300, you need to
change to RFC2543; else phone may not cancel call
normally. System uses RFC3261 as default.
RFC Privacy Edition Set Anonymous call out safely; Support RFC3323 and
RFC3325.
Server Type Select the special type of server which is encrypted, or
has some unique requirements or call flows.
DTMF Mode Select DTMF sending mode, there are three modes:
* DTMF_RELAY
* DTMF_RFC2833
104