Overview of the BGF VoIP Solution

This chapter describes the Juniper Networks border gateway function (BGF) voice over IP (VoIP) solution. Topics include:

• The BGF VoIP Solution in a Next-Generation Network Overview
• BGF VoIP Solution Architecture
• BGF Topology with Multiple Virtual BGFs and Gateway Controllers Overview
• Sample Voice Network Topology
• Control of Voice Flows with Gates Overview
• H.248 Building Blocks Overview
• Virtual Interfaces with the BGF Overview
• Twice NAT for VoIP Traffic Overview
• Quality of Service for VoIP Traffic Overview
• Rate-Limiting for VoIP Traffic Overview
• Security for BGF Overview
• Priority and Emergency Call Handling
• BGF VoIP Call Setup Overview
• VPN Aggregation for VoIP Calls Overview
• Session Mirroring Overview