Zoom X4 - Manual (Page 13)

Chapter 1: Installation Instructions 13
IMPORTANT:
Every time you make changes to the Basic Setup page,
you must click the Save Changes button and then the
Write Settings to Flash and Reboot button. A
Confirm page displays; click the button to complete the
process. If not, any changes will be lost when you
navigate to another page.
Using Phone Filters
You should use a filter with each device—phone, fax machine,
analog modem, etc.—that is sharing the DSL-enabled line, because
this prevents the device from receiving noise when the DSL
modem is on. Your X4 modem includes an onboard filter, so you
can plug a phone or other device directly into the X4’s PHONE
jack if you like. Plugging a device into this jack is optional, not
required. Tip: If your package includes a two-jack filter, you should
plug your telephone into the filter’s PHONE end, rather than the
X4’s PHONE jack.
For other devices on the DSL-enabled line, plug the device’s phone
cord into the filter’s PHONE end, and plug the filter’s LINE end
into the wall jack. Some X4 models come with filters, and more can
be purchased from a retailer or service provider.
Now that your modem is installed and appropriate filters are
attached, you’re done. Enjoy using the X4.