ZyXEL Communications VMG1312-T10C User Manual page 51

If the signal strength of a 3G network is too low, the 3G card may switch to an available 2.5G or
2.75G network. Refer to
wireless technologies.
Figure 24 Network Setting > Broadband > 3G Backup
The following table describes the labels in this screen.
Table 8 Network Setting > Broadband > 3G Backup
LABEL
3G Backup
Card Description
Username
Password
PIN
VMG1312-T10C User's Guide
Section 5.5 on page 52
DESCRIPTION
Select Enable 3G Backup to have the Device use the 3G connection as your WAN or a
backup when the wired WAN connection fails.
This field displays the manufacturer and model name of your 3G card if you inserted
one in the Device. Otherwise, it displays N/A.
Type the user name (of up to 70 ASCII printable characters) given to you by your
service provider.
Type the password (of up to 70 ASCII printable characters) associated with the user
name above.
A PIN (Personal Identification Number) code is a key to a 3G card. Without the PIN
code, you cannot use the 3G card.
If your ISP enabled PIN code authentication, enter the 4-digit PIN code (0000 for
example) provided by your ISP. If you enter the PIN code incorrectly, the 3G card may
be blocked by your ISP and you cannot use the account to access the Internet.
If your ISP disabled PIN code authentication, leave this field blank.
for a comparison between 2G, 2.5G, 2.75G and 3G
Chapter 5 WAN Setup
51