AudioCodes Mediant 600 - Page 5

Version 6.4 5 March 2012
SIP User's Manual Contents
10.4.1.6 State Column ......................................................................................... 121
10.4.2 Routing Table Configuration Summary and Guidelines ........................................121
10.4.3 Troubleshooting the Routing Table .......................................................................122
10.5 Configuring QoS Settings ..................................................................................... 122
10.6 DNS ...................................................................................................................... 123
10.6.1 Configuring the Internal DNS Table .......................................................................123
10.6.2 Configuring the Internal SRV Table .......................................................................124
10.7 NAT (Network Address Translation) Support ....................................................... 125
10.7.1 STUN .....................................................................................................................126
10.7.2 First Incoming Packet Mechanism .........................................................................127
10.7.3 No-Op Packets ......................................................................................................127
10.8 Configuring NFS Settings ..................................................................................... 127
10.9 Robust Receipt of Media Streams ....................................................................... 130
10.10 Multiple Routers Support ...................................................................................... 130
10.11 IP Multicasting ...................................................................................................... 130
11 Security ............................................................................................................ 131
11.1 Configuring Firewall Settings ............................................................................... 131
11.2 Configuring General Security Settings ................................................................. 135
11.3 Configuring IP Security Proposal Table ............................................................... 135
11.4 Configuring IP Security Associations Table ......................................................... 137
12 Media ................................................................................................................ 141
12.1 Configuring Voice Settings ................................................................................... 141
12.1.1 Voice Gain (Volume) Control .................................................................................141
12.1.2 Silence Suppression (Compression) .....................................................................142
12.1.3 Echo Cancellation ..................................................................................................142
12.2 Fax and Modem Capabilities ................................................................................ 143
12.2.1 Fax/Modem Operating Modes ...............................................................................144
12.2.2 Fax/Modem Transport Modes ...............................................................................144
12.2.2.1 T.38 Fax Relay Mode ............................................................................ 144
12.2.2.2 G.711 Fax / Modem Transport Mode .................................................... 145
12.2.2.3 Fax Fallback .......................................................................................... 146
12.2.2.4 Fax/Modem Bypass Mode .................................................................... 146
12.2.2.5 Fax / Modem NSE Mode ....................................................................... 147
12.2.2.6 Fax / Modem Transparent with Events Mode ....................................... 148
12.2.2.7 Fax / Modem Transparent Mode ........................................................... 148
12.2.2.8 RFC 2833 ANS Report upon Fax/Modem Detection ............................ 149
12.2.3 V.34 Fax Support ...................................................................................................149
12.2.3.1 Bypass Mechanism for V.34 Fax Transmission .................................... 149
12.2.3.2 Relay Mode for T.30 and V.34 Faxes ................................................... 150
12.2.4 V.152 Support ........................................................................................................150
12.2.5 Fax Transmission behind NAT ..............................................................................151
12.3 Configuring RTP/RTCP Settings .......................................................................... 152
12.3.1 Configuring Dynamic Jitter Buffer Operation .........................................................153
12.3.2 Comfort Noise Generation .....................................................................................154
12.3.3 Dual-Tone Multi-Frequency Signaling ...................................................................154
12.3.3.1 Configuring DTMF Transport Types ...................................................... 154
12.3.3.2 Configuring RFC 2833 Payload ............................................................ 156
12.3.4 Configuring RTP Multiplexing (ThroughPacket) ....................................................157
12.3.5 Configuring RTP Base UDP Port ...........................................................................158
12.3.6 Configuring RTP Control Protocol Extended Reports (RTCP XR) ........................159
12.4 Configuring IP Media Settings .............................................................................. 160