AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN - Manual (Page 996)

C-4 41-001343-01 Rev 03, Release 3.2.2
# Time Server Settings
## =====================
#time server disabled: 1 # Time server disabled.
#time server1: # Enable time server and enter at
#time server2: # least one time server IP address or
#time server3: # qualified domain name
# 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 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 2:
#
# 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