Franking Machine FAQs - Ireland Can I re-credit my franking machine online? How can I frank a return address on my mail? How to perform a generic call - IS-280 Franking Machine How to perform a generic call - IS-350 Franking Machine How to perform a generic call - IS-420 Franking Machine How to perform a generic call - IS-440 Franking Machine How to perform a generic call - IS-480 Franking Machine How to perform a generic call -IJ-80 Franking Machine