System Parameter - Handcell DAG1000 Series User Manual

DAG1000/2000 Series FXS Voice Gateway User Manual
Note ： * private services are open by default

4.8.7 System Parameter

System parameters include: STUN 、 NTP 、 Provision 、 WEB parameter 、 Telnet.
1 ） STUN ： STUN （ Simple Traversal of UDP over NATs ） is a network protocol. It allows users back
of NAT find their own public network address, NAT type and internet end port have been bound
by NAT for a local port. Two back of NAT router devices established UDP communication
through this information.
STUN doesn't support TCP connection and H.323.
2 ） NTP ： Network Time Protocol （ NTP ） is a computer time synchronization protocol.
3 ） Provision ： Auto Provisioning can be used to provide general and specific configuration
parameters ("Settings") to the DAGs and to manage firmware actualization.
System parameter configuration interface as follow:
Figure 4.8-11System Configuration Interface
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