3Com ISDN Modem, Руководство пользователя

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If Auto Answer is enabled, the call is automatically answered
and a CONNECT message, indicating the speed of the
connection, is delivered to the RS-232 port.
When the 3C882 ISDN modem receives a voice call, the
B channel LED(s) flash green and then remain lit once the call
is answered. (If you are running Multilink PPP, both
B channels flash and then remain lit.)
A flashing LED(s) indicate that the receiving end has not yet
answered the call.
Placing Voice Calls Using an Analog Phone Port
To place an outgoing call, simply take the telephone handset
or external fax machine off the hook, wait for a dial tone, and
dial the destination telephone number.
When you place a voice call, a B channel LED flashes amber,
and then remains lit once the call is established.
A flashing LED(s) indicate that the receiving end has not yet
answered the call.
Receiving Voice Calls Using an Analog Phone Port
By default, incoming calls to ISDN telephone number 1 will
ring devices connected to phone port one, while calls to
ISDN telephone number 2 will ring devices connected to
phone port two.
When the 3C882 ISDN modem receives a voice call, a
B channel LED flashes amber, and then remains lit once the
call is answered.
During a Multilink PPP session, the B channel LED will remain
green until the call is answered.