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Server Hardware for Asterisk PBX
A typical Quad-core motherboard based server running Asterisk PBX can handle in excess of 100 concurrent voice conversations with voice recording enabled. The capacity is determined by the load on the processor and the limitations of the bus on the motherboard. Transcoding (conversion from one CODEC to another) and TDM hardware interrupts can also be resource intensive. For expanding beyond single server capacity, multiple server licenses can be purchased. A typical predictive dialing setup based on the recommended two server hardware model can accommodate 40 plus agents working on multiple concurrent campaigns on a single Asterisk server.
Sample Specification for DELL Telephony Server/Application Server
PowerEdge 2950
Quad Core Intel® Xeon® E5345 2x4MB Cache, 2.33GHz, 1333MHz FSB
Memory
8GB 533MHz (8X1GB), Dual Ranked DIMMs
Network Card
Broadcom Dual Port TCP/IP Offload Engine Not Enabled
Riser Card
Riser with 2 PCI-X Slots (3 Volts) and 1 PCIe Slot
Primary Controller
PowerEdge RAID Controller 5/i, PCI-Express, X4 Backplane, Integrated
Pri. Hard Drive
146GB, 3Gbps, SAS, 3.5 inch, 15K RPM Hard Drive
2nd Hard Drive
146GB, 3Gbps, SAS, 3.5 inch, 15K RPM Hard Drive
3rd Hard Drive
146GB, 3Gbps, SAS, 3.5 inch, 15K RPM Hard Drive
4th Hard Drive
146GB, 3Gbps, SAS, 3.5 inch, 15K RPM Hard Drive
Power Supply
Redundant Power Supply with Dual Cords
TDM Board
(optional) ISDN PRI interface board from Digium/ Sangoma
OEM servers need to be assembled and do not come with the warranty and support like DELL. A basic OEM server can be assembled with the following components:
Part
Quantity
DDR II 4200RAM
4 GB for Application/Telephony servers
AMD Dual Core 4600+ CPU
ONE
Asus M2N-E Motherboard
ONE
250 G 16M Sata II HD
TWO (for SW RAID 1)
Antec Server Case
Video Card
Ethernet board