Rockwell RCV144ACx, Command Reference Manual, Page: 162 / 186

AT Command Reference Manual
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7.3.4 Using VoiceView with Speakerphone, Headset, and Handset modes
Handset (#VLS=0), speakerphone (#VLS=6), or headset mode (#VLS=5) can be selected during VoiceView mode
(+FCLASS=80), when dialing is done on the handset. The ATA command is not accepted while in VoiceView mode in
accordance with the VoiceView Protocol specification. While in VoiceView mode, the modem can alternate between handset
mode (#VLS=0) or speakerphone mode (#VLS=6) settings for voice conversation.
To terminate a call using a handset in VoiceView mode, hang up the handset.
To terminate a speakerphone call in VoiceView mode, issue the ATH command.
Example 3
Originate a VoiceView call with handset dialing and switch to speakerphone and handset modes:
DTE commands DCE Response Function
Pick up handset, dial number, and establish voice
conversation.
AT+FCLASS=80 Enable VoiceView mode.
OK
AT#VLS=6 Switch to speakerphone mode.
OK
(Establish VoiceView Data Mode using normal VoiceView
procedures.)
Continue with speakerphone conversation.
AT#VLS=0 Switch to handset for privacy.
OK
Hang up handset to terminate call.
Example 4
Originate a VoiceView call with handset dialing and switch to speakerphone mode:
DTE commands DCE Response Function
Pick up handset, dial number, and establish voice
conversation.
AT+FCLASS=80 Enable VoiceView mode.
OK
AT#VLS=6 Switch to speakerphone mode.
OK
(Establish VoiceView Data Mode using normal VoiceView
procedures.)
Continue with speakerphone conversation.
ATH Terminate speakerphone call.