ZyXEL Communications P-2302 manual 14

Table of Contents
Chapter 8
NAT.........................................................................................................................................		117
8.1 NAT Overview .....................................................................................................................		117
8.1.1 Port Forwarding: Services and Port Numbers ...........................................................		117
8.1.2 Trigger Port Forwarding ............................................................................................		118
8.1.3 SIP ALG ....................................................................................................................		119
8.2 NAT Screens .......................................................................................................................		119
8.2.1 NAT General Screen .................................................................................................		119
8.2.2 NAT Port Forwarding Screen ...................................................................................		120
8.2.3 NAT Port Forwarding Edit Screen ............................................................................		121
8.2.4 NAT Trigger Port Screen ..........................................................................................		122
8.2.5 NAT ALG Screen ......................................................................................................		123
Part III: VoIP ..........................................................................................		125
Chapter 9
SIP ..........................................................................................................................................		127
9.1 SIP Overview .....................................................................................................................		127
9.1.1 Introduction to VoIP ..................................................................................................		127
9.1.2 Introduction to SIP ....................................................................................................		127
9.1.3 SIP Identities ............................................................................................................		127
9.1.4 SIP Call Progression ................................................................................................		128
9.1.5 SIP Client Server ......................................................................................................		128
9.1.6 RTP ..........................................................................................................................		130
9.1.7 NAT and SIP ............................................................................................................		130
9.1.8 Voice Coding ............................................................................................................		131
9.1.9 PSTN Call Setup Signaling ......................................................................................		132
9.1.10 MWI (Message Waiting Indication) .........................................................................		132
9.2 Custom Tones (IVR) ..........................................................................................................		132
9.2.1 Quality of Service (QoS) ..........................................................................................		133
9.3 SIP Screens .......................................................................................................................		134
9.3.1 SIP Settings Screen .................................................................................................		134
9.3.2 Advanced SIP Setup Screen ....................................................................................		135
9.3.3 SIP QoS Screen .......................................................................................................		139
Chapter 10
Phone.....................................................................................................................................		141
10.1 Analog Phone Overview ..................................................................................................		141
10.1.1 Voice Activity Detection/Silence Suppression/Comfort Noise		................................ 141
10.1.2 Echo Cancellation ..................................................................................................		141
10.1.3 Supplementary Phone Services Overview .............................................................		141
14	P-2302HWUDL-P1 Series User’s Guide