
TD-W8968  300Mbps Wireless N USB ADSL2+ Modem Router User Guide
34 
Figure 4-11 
¾ Location: Please select the location where you're enjoying the 3G card. 
¾ Mobile ISP: Please select the ISP (Internet Service Provider) you apply to for 3G service. The 
modem router will show the default Dial Number and APN of that ISP. 
¾ Always on: Connect automatically after the modem router is disconnected. This option is 
enabled by default. 
¾ Connect on demand: Connect on demand is dependent on the traffic. If there is no traffic (or 
Idle) for a pre-specified period of time (Max Idle Time), the connection will tear down 
automatically. And once there is traffic send or receive, the connection will be automatically on. 
If you want your Internet connection to remain active at all times, enter 0 in the Max Idle Time 
field. 
) Note: 
Sometimes the connection cannot be disconnected although you specify a time to Max Idle 
Time because some applications visit the Internet continually in the background. 
¾ Connect manually: You can click the Connect/Disconnect button to connect/disconnect 
connection immediately. This mode also supports the Max Idle Time function as Connect on 
demand mode. If you want your Internet connection to remain active at all times, enter 0 in the 
Max Idle Time field. 
¾ Authentication Type: Some ISPs need a specific authentication type, please confirm it with 
your ISP or keep it Auto. 
) Note: 
3G settings is unavailable when operation mode is not 3G Router Mode and the backup is not 
enabled. Please tick the box in the next screen to enable 3G as a backup solution for Internet 
access or change settings on Operation Mode if you want to use 3G.