Specifications

<pending_RD> Decimal number 0 specifying that disconnect will occur immediately and
all buffered receive data will be discarded when the local DTE requests call
disconnection.
<timer> Decimal number 0 specifying that the modem will not attempt to deliver the
buffered data before abandoning the attempt and discarding remaining data.
Reporting Current or Selected Values
Command: +ETBM?
Response: +ETBM: <pending_TD>,<pending_RD>,<timer>
Example: +ETBM: 0,0,0
Reporting Supported Range of Parameter Values
Command: +ETBM=?
Response: +ETBM: (<pending_TD> range),(<pending_RD> range), (<timer> range)
Example: +ETBM: (0),(0),(0)