Photographic term ISDN (Integrated Services Digital Network) SWPPPG Mutual - Income Protection Plus

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ISDN (Integrated Services Digital Network)SWPP Photographic Glossary

Friday 12th August 2022  




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ISDN (Integrated Services Digital Network)

A telephone connection used mostly by businesses because it allows data files to be transmitted at about twice the speed of normal telephone lines. It costs about 50 to convert a line and costs about 40 per month rental.



 

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18/07/2022 16:38:37