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Configuring Licenses 393
Installing ConneXtions 395
Finishing the Installation 397
Overview of H.323 398
Negotiated Connections 398
Negotiated Voice Compression 399
Standard Extensions 400
Remote Internet Device Connections 400
The H.323 Connection 401
Connection Considerations 402
Overall Connectivity 402
Quality of Service 403
Quality of Service Control 406
Special Issues 408
Firewall Security 408
Gateway Load 410
Remote Access 410
PBX Connections 411
Class of Service 414
IP Type of Service and Differentiated Services 414
Alternate Gatekeepers 415
Checking Connections 415
Gateway Checks 415
Network Checks 416
Placing Calls 420
IP Address Entry 420
Speed Dials 421
One Button Access 423
Entering Digits During Calls 423
Receiving Calls 424
Auto Attendant 424
Attendant Console 425
Other Extensions 425
Handling Conference Calls 426
Related H.323 Documentation 426