Draytek 2900 사용자 설명서

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Vigor2900 Series User’s Guide 
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ISDN stands for Integrated Services Digital Network. It is an international communications 
standard for sending voice, video, and data over digital telephone lines or normal telephone 
wires.  
Note: The following is available for Vigor2900VGi/Vi only. 
 
ISDN Port 
Click Enable to open the ISDN port and Disable to close 
it. 
Country Code 
For proper operation on your local ISDN network, you 
should choose the correct country code. 
Own Number 
Enter your ISDN number. Every outgoing call will carry 
the number to the receiver. 
MSN Numbers for the Router 
MSN Numbers mean that the router is able to accept only 
number-matched incoming calls. In addition, MSN 
services should be supported by local ISDN network 
provider. The router provides three fields for MSN 
numbers. Note that MSN services must be acquired from 
your local telecommunication operators. By default, MSN 
function is disabled. If you leave the fields blank, all 
incoming calls will be accepted without number matching. 
Blocked MSN Numbers for the 
router
 
Enter the specified MSN number into the fields to 
prevent the router from dialing the specific MSN 
number. 
For example, DrayTek provides the Remote Activation (refer to section 3.2) feature for the 
teleworkers who wish to dial in the head office over the ISDN. With this feature, teleworkers 
can make a phone call to the router at the head office and ask the router to dial up the ISP. As 
a result, the teleworkers can be authorized with their office accounts to utilize ISDN dial-up 
services and both sides can thus engage in secure communication over the LAN-to-LAN 
ISDN. 
The ISDN interface of Vigor2900VGi and Vigor2900Vi routers supports the VTA (Virtual 
Terminal Adapter, 
please refer to section 2.8) feature. VTA is actually a “CAPI” software,