Cortelco network adaptor - Manual (Page 20)

G. Princess and Trimline telephones - DPA will not operate with
"Princess" or "Trimline" telephones, which have the keypad in the
handset. The electronics with which the DPA interacts are not
accessible in these telephones.
H. Tone dialing - Make sure your modem is configured for Tone
(DTMF) dialing. Your DPA will not work with pulse (rotary) dialing.
Your modem user guide or operating instructions should describe this
procedure.
I. "No Dial Tone" error message - The “No Dial Tone” error message
is presented when the modem doesn’t receive dialtone or recognize
what it is receiving as dialtone. Some telephone systems encountered
in North America (such as Rolm or Siemens) and most foreign
telephone systems do not use the standard dial tone. Your modem
software will normally require your modem to detect dial tone and may
not recognize non-standard tone as dial tone. The Hayes command
X1 or X3 will tell your modem to dial without detecting dial tone. This is
the same command used for Blind Dialing.
J. V.90 Connections - Although the DPA is compatible with V.90
modems, the maximum connection speed through the DPA is normally
33.6Kbps. Your connection speed will be determined by the phone
system's capabilities, your modems capabilities, and the quality of the
phone line. When using the DPA, your connection is going through a
digital phone system, which was not designed for data
communications. Your connection speed will probably be slower than
you would get on an analog phone line. In fact, V.34bis/V.90
connections at 28.8Kbps, 24Kbps, and 21.6Kbps are common.
K. Hanging up the modem - The DPA disconnects the “Handset”
jack when your modem is in use. After data transactions or when
autodialing voice calls, use your communications software to hang up
your modem so that the Handset jack is reactivated. The manual that
came with your software should describe how to hang up the modem.
L. USB Ports - Located next to the USB I/O cable are two USB ports.
These ports can be used to connect low-powered USB devices.
M. Lost or Missing User Guides - In the event the Quick Setup
Guide is lost or missing, you can download this DPA Quick Setup
Guide from our website at www.konexx.com/dpa/index.html. Also
available on our web site is a more detailed DPA User Guide.
N. System Requirements
1. Windows 98 or later.
2. Compliant with USB 1.1 requirements for bus powered devices.
USB Hub supports low power or self powered USB devices (each USB
port provides 100 mA).