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O2 is a module with 2 FXO ports to terminate two analog PSTN (POTS) lines.
Price: £203.22 from Computers Deal
| Retailer | Price | |
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| Computers Deal | £203.22 | Go to shop |
S2 is a module with 2 FXS ports to terminate two analog telephone.
POLY EDGE E EXPANSION MODULE EXPANSION MODULE FOR POLY EDGE E400/E500 SERIES IP DESK PHONES Transforms Any Edge E400/E500 Series Phone TURN YOUR POLY EDGE IP PHONE INTO A HIGH-PERFORMING ATTENDANT CONSOLE The Poly Edge E expansion module super-charges...
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