Before moving to production, i am just collecting few information's not to get surprise in future. Therefore, can anyone provide estimated suggestion, how many channels/node can make server 100% reserve?

System plan:
===========
- Single Quad Core Intel Xeon Processor uit de 5400-reeks met maximaal 3,16 GHz
- 8GM RAM

Question:
=======
1. Can i handle 100 or 300 simultaneous calls for Skype IN and Skype Out using FS?


Thank you
Best regards