
PCI Modem Card User's Manual
52
+ETBM=<pending_TD>,<pending_RD>,<timer>—Call Termination
Buffer Management
Use this command to set the behavior of the modem during call termination.
The <pending_TD> parameter controls how previously-transmitted data
remaining in the DCE buffers is handled when the DTE request a disconnect
from the call. The <pending_RD> parameter controls how previously-
received data remaining in the DCE buffers is handled when the remote DCE
disconnects the call. The <timer> parameter sets the maximum amount of
time the soft modem will attempt to deliver the buffered data before
abandoning the attempt and discarding any remaining data.
<pending_TD> Parameter Values:
0
Modem discards all buffered data immediately and disconnects.
1
Modem ignores the timer and attempts to deliver the data until
it is acknowledged. If the remote DCE disconnects, discard the
remaining data.
2
Modem attempts to deliver the data until the data is
acknowledged. If the remote DCE dis-connects, or the timer
expires, discard the remaining data.
<pending_RD> Parameter Values:
0
Modem discards all buffered data immediately and disconnects.
1
Modem ignores the timer and attempts to deliver the data until
it is acknowledged. If the local DTE request a disconnect,
discard the remaining data.
2
Modem attempts to deliver the data until the data is
acknowledged. If the local DTE request a disconnect, or the
timer expires, discard the remaining data.
<timer> Parameter Values:
0
Modem does not attempt to deliver data.
1—254
Modem attempts to deliver data for the amount of time set by
the <timer> parameter.
+EWIND=<value_1>,<value_2>—Window Size
Use this command to set the maximum number of acknowledged frames
allowed at the link layer. Changes set by the command take effect when the
next connection is established. <value_1> sets the maximum window size for
the transmit direction and <value_2> sets the maximum window size for the
receive direction. The default value for <value_1> is 15.
+FCLASS=<value>—Service Class Indication