Aastra VentureIP 480i, Administrator'S Manual, Page: 136 / 174

IP Phone SIP Admin Guide 129
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# Time Server Disabled:
# 0 = false, means the time server is not disabled.
# 1 = true, means the time server is disabled.
# NAT Settings
#=============
# Option 1:
#
# If you are connecting to a Nortel MCS call server and there is a
# NAT device between the server and the phone, then you must set the
# following two parameters for the phone to function correctly.
#sip nortel nat support: 1 # 1 = enabled
#sip nortel nat timer: 60 # seconds between keep alive messages
# Option 2:
#
# If you are using a session border controller, you should set the
# outbound proxy to the session border controller address
#sip outbound proxy: sbc.aastra.com
#sip outbound proxy port: 0 # a value of 0 enables SRV
# lookups for the address of
# the proxy.
# Option 3:
#
# If you know the public IP address of your NAT device and and have
# opened up a port for the SIP messages then you can statically
# assign this information.
#sip nat ip: 67.123.122.90
#sip nat port: 5890