User manual

得伯乐科技有限公司
DBL Technology Limited GoIP User Manual
Web: www.dbltek.com
Tel: [phone]
3.4.3 Main DNS
The DNS (domain name system) is a database that stores the Internet names and addresses, and
converts between the name and the common Internet protocol digits. The main DNS is the IP address
of the main DNS (such as 202.67.156.221 or obtain from the service provider). If the PPPoE is set, the
main DNS will be automatically provided by the service provider. This parameter can be null.
3.4.4 Secondary DNS
When the main DNS address fails to connect or is not available, the secondary DNS can be used
(such as 202.67.156.222 or obtain from the service provider). If the PPPoE is set, the secondary DNS
will be automatically provided by the service provider. This parameter can be null.
3.5 Call Setting
This section describes the basic setting of the network connection relating to the GoIP gateway,
which supports two protocols: H323 and SIP. The setting page is as follows: You can select a protocol
in the “Terminal Type”.
3.5.1 H.323 Terminal Setting
The H.323 protocol involves the direct connection mode and Gatekeeper mode.
3.5.1.1 Direct Connection
Under this mode, the GoIP operates in the point-to-point status. The setting parameters are as