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Table of Contents
P-2302HWUDL-P1 Series User’s Guide
14
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