Cortelco network adaptor - Manual (Page 11)

Step 3. If the phone has a volume control, ensure that the volume
is set to mid-range. Do this by lifting the handset to your ear and
adjust the volume control to mid-range.
Step 4. Return the telephone handset in the cradle.
Step 5. Using your computer, begin the dial up or connection
process as normal (choose login, sign on, dial, etc.).
Step 6. After the modem completes dialing lift the telephone handset
from the cradle and place it on your desktop.
NOTE: If you cannot hear your modem dial - begin the dial up or
connection process as normal, wait approximately 5-10 seconds,
then lift the handset and place it on your desktop.
Step 7. Get an outside line (dial 9 or other prefixes if necessary) and
manually dial the number of the modem you wish to connect to on the
keypad of the telephone.
Step 8. Wait for your modem and host to negotiate the connection.
Your connection is now established. Do not hang up the telephone
handset until you are ready to terminate your connection.
If you have trouble connecting, please call KONEXX Technical
Support at 800-275-6354 or (858) 622-1400 (7:30 – 4:30 PST)
NOTE: “Hum” Switch - When using the DPA with a laptop computer, you may
notice a “buzz” or “humming” noise on the handset when the laptop computer is
being powered by its’ external power supply. The noise is being generated by
the computers’ external power supply and is being picked up by the telephone
set due to a ground incompatibility. Changing the switch position should eliminate
the “buzz” or “hum”. The white arrow below indicates the location of the “Hum”
Switch.