56K V.92 Data, Fax, and Voice Chipset

Table 6-1. Voice Mode Command Descriptions (Continued)

Relay/Playback Control: (cont.)

Voice I/O Primitive Codes

Primitive Code

L

T

M0

M1

+VLS=n

0

S0

(cont.)

 

 

 

 

S1

 

 

H0

Description

Local phone Telco line Internal microphone External microphone

Internal speaker (requires squelch on any microphone activ- ity)

External speaker (requires squelch on any microphone activ- ity)

External microphone and speaker combination (handset or headset)

Note: For speakerphone applications, see ATI10, +VSP, and “Speakerphone

 

 

 

AT Command Requirements” in the Voice Application Note for more

 

 

 

details.

 

 

 

 

 

Automatic Hang-Up Control: This command changes the way the modem re-

 

 

sponds to hang-up commands after it switches from voice mode to fax or data

 

 

modes.

 

 

 

n = 0–2

 

+VNH=n

0

n = 0*

The modem retains automatic hang-ups as normal in data and

 

 

 

fax modes

 

 

n = 1

The modem disables automatic hang-ups usually found in non-

 

 

 

voice modes

 

 

n = 2

The modem disables all automatic hang-ups usually found in

 

 

 

non-voice modes except a ‘logical’ hang-up

 

 

 

 

90

Intel Confidential

Programmer’s Guide

Page 90
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Intel MD566X manual Relay/Playback Control, Primitive Code +VLS=n, +VNH=n