Motorola SM56 manual +Vsm, +Vtd, +Vts

Command

Option

Description

0

Use current +VSM value; or, if current +VSM value

is 0, use 128.

127

Low Threshold (most sensitive)

128

Medium Threshold

129

High Threshold (least sensitive)

n options:

Specifies the silence-detection duration

0

Disable

1-255

Detect n/10 seconds silence; n = 0-255

50

Default = 5 seconds

+VSM

Speech Compression Properties

Data/Fax/Speakerphone modem only

+VSM=m,n,

Specifies the speakerphone compression parameters

p,q

m options:

Specifies the compression method

128

PCM

129

ADPCM

n options:

Specifies the sampling rate to determine whether to

compress

8000

8000 Hz

p options:

Parameter p specifies compression and expansion of

periods of silence. These parameters are not imple-

mented in Release 1.0. You may leave them blank or

enter the value 0.

0

Disable

q options:

Parameter q specifies compression and expansion of

periods of silence. These parameters are not imple-

mented in Release 1.0. You may leave them blank or

enter the value 0.

0

Disable

+VTD

Dual Tone Multi-Frequency (DTMF) Tone Dura-

tion

Data/Fax/Speakerphone modem only

+VTDn

Generates tone for n/100 seconds; n = 0-255.

Default=100.

+VTS

DTMF Tone Generation Properties

Data/Fax/Speakerphone modem only

+VTS accepts multiple options, separated by com-

mas, of any of the following types. Use square or

curly brackets as shown.