Application Note: Testing Session Border Control in NGN and IMS Environments with Hammer from Empirix

Session Border Controllers, or SBC’s, play a critical role in a variety of VoIP network architectures. SBC’s are commonly used to act as a VoIP-aware firewall to assist with network peering and NAT traversal. In NGN and IMS networks, SBC’s are increasingly used for more advanced functionality, such as:

• Core network protection and security
• Access network resource and admission control
• Policy coordination and control
• VoIP protocol interworking

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