George is right on here. We no longer validate servers. They simply need to:
1) Meet or exceed the system requirements posted in the Installing and Configuring IC guide
2) Have no more than 4GB of memory (I know, that can be tough)
3) Processors must be supported by Dialogic. The supported CPU's are listed here:
http://www.dialogic.com/main/dialogic/home/products/ip_enabled/hmp_faq.htm#What_processors_does_Dialogic_HMP_support_
--- From that page ---
Q: What processors does Dialogic® HMP support?
A: Dialogic® HMP Supports Intel Xeon® 30xx, 31xx, 32xx, 33xx, 52xx, 53xx, 54xx, 72xx, 73xx and 55xx series processors. AMD Opteron™ 22XXSE,AMD Opteron™ 82XX are supported for IP Only configurations. For more information on tested configurations please see release guide of the specific release.
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Dialogic will update this as they test CPU's. If you have one that is not listed, contact ININ support and they will request to Dialogic that the newer CPU is tested.