Hi Joe, I just got a modem approved in Ireland about a month ago and, yes, they have relaxed their requirement for ringing impedance. I was told that this was in response to PCMCIA modem manufacturers who couldn't find 1.8uf caps in a small enough package.
Here an excerpt of what I received from Forbairt on July 9th... P.120 - Ringing Frequency Impedance The Department of Communications have recently relaxed this requirement to allow applicants to comply with either TTE1 or TBR21. This was as a result of client companies not being able to fit the 1.8uf capacitor into the available space on internal and PCMCIA modems. TBR21 allows for a total impedance of greater than 4kohms and a phase angle of between 37 and 90 degrees. I had no trouble meeting this relaxed requirement with .47uf and 7.5k ohms. Regards, Debbie Olson Boca Research
