User's Manual 6 Document #: LTRT-10632
Mediant 800B Gateway & E-SBC
13 Security ............................................................................................................ 175
13.1 Configuring Firewall Settings ............................................................................... 175
13.2 Configuring General Security Settings ................................................................. 180
13.3 Intrusion Detection System .................................................................................. 181
13.3.1 Enabling IDS ..........................................................................................................181
13.3.2 Configuring IDS Policies ........................................................................................182
13.3.3 Assigning IDS Policies ...........................................................................................186
13.3.4 Viewing IDS Alarms ...............................................................................................188
14 Media ................................................................................................................ 191
14.1 Configuring Voice Settings ................................................................................... 191
14.1.1 Configuring Voice Gain (Volume) Control .............................................................191
14.1.2 Configuring Echo Cancellation ..............................................................................191
14.2 Fax and Modem Capabilities ................................................................................ 193
14.2.1 Fax/Modem Operating Modes ...............................................................................193
14.2.2 Fax/Modem Transport Modes ...............................................................................194
14.2.2.1 T.38 Fax Relay Mode ............................................................................ 194
14.2.2.2 G.711 Fax / Modem Transport Mode .................................................... 196
14.2.2.3 Fax Fallback .......................................................................................... 197
14.2.2.4 Fax/Modem Bypass Mode .................................................................... 198
14.2.2.5 Fax / Modem NSE Mode ....................................................................... 199
14.2.2.6 Fax / Modem Transparent with Events Mode ....................................... 200
14.2.2.7 Fax / Modem Transparent Mode ........................................................... 200
14.2.2.8 RFC 2833 ANS Report upon Fax/Modem Detection ............................ 201
14.2.3 V.34 Fax Support ...................................................................................................201
14.2.3.1 Bypass Mechanism for V.34 Fax Transmission .................................... 202
14.2.3.2 Relay Mode for T.30 and V.34 Faxes ................................................... 203
14.2.3.3 V.34 Fax Relay for SG3 Fax Machines ................................................. 203
14.2.4 V.150.1 Modem Relay ...........................................................................................205
14.2.5 Simultaneous Negotiation of Fax (T.38) and Modem (V.150.1) Relay ..................206
14.2.6 V.152 Support ........................................................................................................206
14.3 Configuring RTP/RTCP Settings .......................................................................... 206
14.3.1 Configuring the Dynamic Jitter Buffer ....................................................................207
14.3.2 Comfort Noise Generation .....................................................................................208
14.3.3 Configuring DTMF Transport Types ......................................................................208
14.3.4 Configuring RFC 2833 Payload .............................................................................210
14.3.5 Configuring RTP Base UDP Port ...........................................................................210
14.4 Event Detection and Notification using X-Detect Header ..................................... 211
14.4.1 SIT Event Detection ...............................................................................................213
14.4.2 Detecting Answering Machine Beeps ....................................................................214
14.4.3 SIP Call Flow Examples of Event Detection and Notification ................................215
14.5 Answering Machine Detection (AMD) .................................................................. 217
14.5.1 Configuring AMD ...................................................................................................219
14.5.2 Enabling IP-to-Tel Call Disconnection upon Detection of Answering Machine .....220
14.6 Automatic Gain Control (AGC) ............................................................................. 221
14.7 Configuring Media (SRTP) Security ..................................................................... 222
14.7.1 SRTP using DTLS Protocol ...................................................................................224
15 Services ........................................................................................................... 227
15.1 DHCP Server Functionality .................................................................................. 227
15.1.1 Configuring the DHCP Server ...............................................................................227
15.1.2 Configuring the Vendor Class Identifier .................................................................232
15.1.3 Configuring Additional DHCP Options ...................................................................233
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