Parameter Description
please select an item from dropdown list.
disable: Select this item when the sip proxy server and IP phone in the
same LAN, or the sip proxy system supports the IP phone working behind
the LAN.
enable: When the system does not support IP phone working behind the
LAN, please select this item to search public IP address of the NAT device.
With this item selected, “nat addr” field will be activated. Besides, port
mapping (port forwarding) needs to be properly set up on NAT device.
stun: Select this item with Stun server used according to requirement of
system. STUN presents a working solution for most NATs that are not
symmetric, e.g., most of the household routers have non-symmetric NAT
and in this case, it is OK to use STUN. However, STUN does NOT work with
symmetric NAT and if your routers have built-in symmetric NAT, do not use
STUN. If your configuration is STUN-friendly, please configure your phone
to use it. With this item selected, nat addr field is activated.
Please ask your service provider if you do not know which one to select.
NAT Server Address
When NAT Traversal is set to enable, please put the domain name of the
servers ( These web server helps to find out the public IP of the NAT
device) into nat addr
When NAT Traversal is set to Stun, please put the URl of the stun server
into NAT Addr, in the format as “domain name/IP address : service port”.
User ID/Password
The user name or password used to login SIP server for authentication.
IP Phone Number
The number or username of this terminal, usually is allocated by system.
4.3 Phone Configuration Parameters
Parameter Description
Use DialPlan
Defines the dial plan that the IP Phone should use; there are four options
available:
disable—This is the default selection. Select this option for normal
dialing from the IP Phone.
hotline—Select this option if you want to send all outgoing calls to a
designated phone number automatically when you pick up the
phone from the hook.
abbrdial—Select this option if you want to use pre-defined sets of
digits, such as country codes, when dialing.