vii
List of Figures
Figure 1. Hardware Configuration with Onboard NIC and PSTN Front End....... 7
Figure 2. Hardware Configuration with Onboard NIC and separate PSTN
board.............................................................................................................. 8
Figure 3. Typical Topology ..................................................................................9
Figure 4. Programming Model............................................................................ 26
Figure 5. Call Establishment from IP.................................................................. 31
Figure 6. Call Establishment from PSTN............................................................ 32