Using The Modem; Hints For Good Connections - 3Com 3CCFEM556 User Manual

8

Hints for Good Connections

Use the following information when you set up your
communications software to help your modem connect
at the highest possible speed:
U
SING THE
If you have call waiting, disable it. Call waiting
generates a tone on the line that causes results similar
to static. It also causes your modem to disconnect or
report NO CARRIER if a call waiting signal comes when
your modem is connected to another modem. Call
waiting is usually disabled by using *70 in your dial
string before the phone number for example:
ATDT*70,14089808204
Contact your phone company if you need more
information.
Telephone lines with static or noise slow down
transmission and require error correction. If your phone
line has a problem with noise, contact your telephone
company to see if they can fix the problem.
Don't use a splitter on your telephone line. A single
connection from wall to modem produces the highest
transfer speed.
If the modems don't connect during the handshake:
Try disabling error correction (use the AT command
AT&M0)
Try disabling data compression (AT&K0).
If you continue having trouble communicating, select
the maximum transmission speed of your modem
(115,200 bps).
M
ODEM