Specifications

V.3229 / V.3229L <C#>-9

Status Registers

Lost Carrier Detect

Time

S10=0-255

S10 contains the amount of time (0-255) in 0.1 sec-

ond increments carrier must be absent to be recog-

nized as a loss of carrier. The default value is 14 (1.4

seconds).

DTMF Tone

Duration

S11

S11 determines the length of DTMF tones. The

period of silence is equal to the duration of the tone.

The value of this register must be entered in multiples

of 10. Default value is 80 (80 ms).

Escape Sequence

Pause

S12=0-255

Using the escape sequence to return to command

mode from data mode requires two pauses, one be-

fore and one after the escape characters.

The pauses prevent the modem from responding to a

character sequence which might contain the escape

sequence as part of its normal data transmission.

S12 contains the pause interval in 0.02 second incre-

ments. The factory setting is 50, equivalent to 1

second (50 x 0.02 sec). When S12 is 0 then timing

is not a factor.

The timing between the 3 escape characters must be

less than the pause interval or the escape sequence

will not be detected. The data rate also affects the

timing and must be taken into account when chang-

ing the pause interval.

To disable the escape command, set S2 to a value