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PCI Module Combination and Limitation

 

1.      DSP: Transcoding channels are required when processing calls with different codec. Transcoding is done through DSP in Essence¡¦s design. A bare IPBX-1823/1825 does not have DSP on board and therefore, customers are recommended to buy at least one PCI module with available transcoding channels when purchasing Essence IPBX-1823/1825 series products. Please see following table for DSP/transcoding-channel related information.

 

Model Number

DSP Embedded

Note

FXO81104

Y

4-port FXO module (transcoding channels available: 4)

FXS81104

Y

4-port FXS module (transcoding channels available: 4)

FXO81108

Y

8-port FXO module (transcoding channels available: 0)

FXE82113

Y

3O1S emergency module (transcoding channels available: 4)

BRI81004

N

ISDN module (transcoding channels available: 0)

DSP81100

Y

DSP module (transcoding channels available: 8)

IPSec81003

N

acceleration module (transcoding channels available: 0)

 

From above table, we know modules like FXO81008, BRI81004 and IPSec81003 do not have available transcoding channels so customers are recommended to buy appropriate PCI module (DSP81100, for example) if transcoding channels are needed.

 

2.      PCI Module Location: for PCI modules provided by Essence Technology Solution, Inc., users are suggested to insert the module into slot 0 if only one module is purchased. If you have 2 modules, you can insert any module into any slot except BRI81004, DSP81100 and IPSec81003, which are suggested to insert into slot 1. The slot location of BRI81004, DSP81100 and IPSec81003 would not matter if you use only those modules. Please see following diagram for slot location.

 



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