ZyXEL Communications 2002 13

		P-2002 Series User’s Guide
5.6	Voice Coding ......................................................................................................	54
	5.6.1 G.711 .........................................................................................................	55
	5.6.2 G.729 ........................................................................................................	55
5.7	PSTN Call Setup Signaling ................................................................................	55
5.8	MWI (Message Waiting Indication) .....................................................................	55
Chapter 6
VoIP Screens...........................................................................................................		57
6.1	VoIP Introduction ................................................................................................	57
6.2	VoIP Configuration .............................................................................................	57
6.3	Custom Tones (IVR) ...........................................................................................	59
	6.3.0.1 Recording Custom Tones ................................................................	59
	6.3.0.2 Listening to Custom Tones ..............................................................	60
	6.3.0.3 Deleting Custom Tones ...................................................................	60
6.4	Advanced VoIP Settings Configuration ..............................................................	60
6.5	Quality of Service (QoS) ....................................................................................	64
	6.5.1 Type Of Service (ToS) ...............................................................................	64
	6.5.2 DiffServ .....................................................................................................	64
	6.5.2.1 DSCP and Per-Hop Behavior ..........................................................	65
	6.5.3 VLAN ........................................................................................................	65
6.6	QoS Configuration ..............................................................................................	65
Chapter 7
Phone ......................................................................................................................		67
7.1	Phone Introduction .............................................................................................	67
	7.1.1 Voice Activity Detection/Silence Suppression ...........................................	67
	7.1.2 Comfort Noise Generation ........................................................................	67
	7.1.3 Echo Cancellation .....................................................................................	67
7.2	Phone Port Configuration ...................................................................................	67
7.3	Supplementary Phone Services Overview .........................................................	69
	7.3.1 The Flash Key ...........................................................................................	69
	7.3.2 Europe Type Supplementary Phone Services ..........................................	69
	7.3.2.1 European Call Hold .........................................................................	70
	7.3.2.2 European Call Waiting ....................................................................	70
	7.3.2.3 European Call Transfer ...................................................................	71
	7.3.2.4 European Three-Way Conference ..................................................	71
	7.3.3 USA Type Supplementary Services ..........................................................	71
	7.3.3.1 USA Call Hold .................................................................................	71
	7.3.3.2 USA Call Waiting ............................................................................	72
	7.3.3.3 USA Call Transfer ...........................................................................	72
	7.3.3.4 USA Three-Way Conference ...........................................................	72
7.4	Common Phone Configuration ...........................................................................	72

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