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 Using Digium's Asterisk Open Source PBX software and standard PC hardware, one can create a SOHO (Small Office Home Office) telephony environment that includes all the sophisticated features of a high-end business telephone system. 
The TDM400P takes the place of an expensive channel bank and brings the system price point to a low level. By using S110M and X100M modules with the TDM400P, one can create a solution with support for a range of telephones. To scale this solution, simply add additional TDM400P cards populated with modules. 
Note: The 12V power connector is required for the operation of FXS modules. It is not required for the operation of FXO modules. 
Boxed TDM Retail Package Includes 
    - TDM400P
    
 - FXS and/or FXO Modules, depending on which bundle was ordered
 
    - Hardware Installation manual
 
    - RJ11 cables (one for each active port)
 
    - Digium | Asterisk CD-ROM with Asterisk source code
 
    - Digium | Asterisk reversible screwdriver
 
    - Digium | Asterisk mouse pad
 
    - Five Year Limited Warranty
 
 
Download: Digium TDM400P Data Sheet 
 
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