3Com V7122 User Manual page 7

Fax & Modem Transport Modes 250
Fax/Modem Settings 250
Event Notification using X-Detect Header 252
ThroughPacket™ 254
Dynamic Jitter Buffer Operation 254
Configuring the Gateway's Alternative Routing (based on Connectivity and QoS) 256
Alternative Routing Mechanism 256
Determining the Availability of Destination IP Addresses 256
PSTN Fallback as a Special Case of Alternative Routing 257
Relevant Parameters 257
Call Detail Report 257
Supported RADIUS Attributes 259
RADIUS Server Messages 261
Trunk to Trunk Routing Example 261
Proxy or Registrar Registration Example 262
SIP Call Flow Example 263
SIP Authentication Example 266
Reader's Notes 270
C 9: N
HAPTER ETWORKING
Ethernet Interface Configuration 271
Ethernet Interface Redundancy 272
NAT (Network Address Translation) Support 272
STUN 273
First Incoming Packet Mechanism 274
No-Op Packets 275
Point-to-Point Protocol over Ethernet (PPPoE) 275
Point-to-Point Protocol (PPP) Overview 275
PPPoE Overview 276
PPPoE in 3Com Gateways 277
IP Multicasting 278
Robust Reception of RTP Streams 278
Multiple Routers Support 278
Simple Network Time Protocol Support 279
IP QoS Using Differentiated Services (DiffServ) 279
VLANS and Multiple IPs 280
Multiple IPs 280
V7122 Gateway User Guide
C 271
APABILITIES
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