Dublin Trial Callcards
The Dublin trial was started in the year 1988, and lasted 2 years until 1990. The GPT Megnetic Phonecard was used in this trial.
Dublin Trial 5u
The Dublin Callcard trial commenced in the year 1988, which used the GPT/Plessey magnetic card system. Read more about the trial Callcards h[...]
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Dublin Trial 10u Deep Notch
The Dublin Callcard trial commenced in the year 1988, which used the GPT/Plessey magnetic card system. Read more about the trial Callcards h[...]
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Dublin 10u Trial Shallow Notch
The Dublin Callcard trial commenced in the year 1988, which used the GPT/Plessey magnetic card system. Read more about the trial Callcards&n[...]
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Dublin 20u Trial
The Dublin Callcard trial commenced in the year 1988, which used the GPT/Plessey magnetic card system. Read more about the trial Callcards&n[...]
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Dublin 50u Trial
The Dublin Callcard trial commenced in the year 1988, which used the GPT/Plessey magnetic card system. Read more about the trial Callc[...]
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Dublin 100u Trial
The Dublin Callcard trial commenced in the year 1988, which used the GPT/Plessey magnetic card system. Read more about the trial Callcards&n[...]
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