The WavSpeed F9SIP-500-i5 appliance as outlined below and VitalPBX v4.5 Distro. In this configuration the Appliance is recommended for up to 500 extensions and 150 concurrent calls.
 
Specifications of the Appliance are as followed:
1U Server
Intel Core i5-14400 10 Cores 16 Threads
1 x PCIE 16X Expansion Slot
8 x Intel I226V 2.5G Network Ports
2 x Intel 82599ES 10G SFP+
Dual 512 M.2 NVMe 2280 SSD, Expandable to add 2 x 2.5” SATA Drives
16GB - 2 x 8 GB DDR5 SO-DIMM (Up to 64GB)
1 Year Hardware Warranty
20.47in D X 13.5in W X 1.75in H
Box size is 28in L X 20in W X 8in H and weighs 15 lbs
VitalPBX is preloaded but does not include licensing