Silicon Laboratories SI2493/57/34/15/04 Voice Mode Operations +FCLASS=8, +Vtx +Vrx +Vsp +Vts

AN93

Table 117. Voice Mode Operations (+FCLASS=8)

+VLS Mode	Primitive	DAA	Active	Description	+VTX	+VRX	+VSP	+VTS
			Detectors
0	None	On-Hook	Ring, CID1	Voice mode is disabled.
				TAM operation for call
			FDV DTMF	answer with OGM playback	RS232-	DAA-		RS232-
1	T	Off-Hook		and record message using
			2Tones*	DTE voice stream pass	>DAA	>RS232		>DAA
				through with no audio moni-
				toring using Si3000.
4	S	On-Hook	Ring, CID1	Await call. Use +VTX for	RS232-			RS232-
				melody playback via AOUT.	>AOUT			>AOUT
			FDV DTMF	Place call with audio call	RS232-	DAA-		RS232-
5	ST	Off-Hook		progress on AOUT. +VTS
			2Tones*	tone signal can be heard at	>DAA	>RS232		>DAA
				AOUT via DAA echo-back.
				Speakerphone operation:
				Use +VSP=1 to enable
				AEC/LEC and speaker-
				phone FIR filters without
				side-tone gain. Only CID2				RS232-
			CID2	detector is active.
							Si3000<	>DAA
13	M1S1T	Off-Hook	FDV DTMF
				Handset operation: Use			-->DAA	RS232-
			2Tones*
				+VSP=0 for handset opera-				>Si3000
				tion with handset FIR filters
				and side tone gain. All the
				detectors are active. Same
				as +VLS=15 without TAM
				operation.
			Ring, CID1	TAM operation for OGM		DAA-
				record and OGM/message	RS232-	>RS232
14	H	On-Hook	FDV DTMF
				playback via DTE voice	>Si3000	Si3000-
			2Tones*
				stream pass through.		>RS232
				Handset voice calls over
				Si3000<-->DAA path.	RS232-	DAA-		RS232-
			CID2	TAM operation for call
				answer with OGM playback	>DAA	>RS232		>DAA
15	HT	Off-Hook	FDV DTMF
				and record message using	RS232-	Si3000-		RS232-
			2Tones*
				DTE voice stream pass	>Si3000	>RS232		>Si3000
				through with audio monitor-
				ing using Si3000.
			Ring, CID1	Await call.
20	S	On-Hook	FDV DTMF
			2Tones*

190 Rev. 1.3