dear Duane
for the moment you need the SR 784.103.12/2.2 PSTN access (ETS 300 001)
requirements for approval tests in switzerland. See there 3.3.3.3: In
accordance with ETS 300 001 {1}, Section A.4.1.2, the insertion loss shall
not exceed 2 dB. Now, I meen you need a 12 kHz - Filter.
konrad gysi, swiss telecomm PTT laboratories for telecommunication Equipment,FE6
>Treggers,
>
>I need an interpreter. I've read the paragraph below from prTBR 21 and to
>me it's a bit vague. I assume metering tones will still be mandatory in
>Switzerland after the approval TBR 21? I don't see how there going away
>just because TBR 21 is approved. I have a client insisting the filtering
>in Switzerland is no longer needed. I don't believe it. Can someone
>please read the paragraph and let know the correct answer?
>
>My in house English major also thinks the statement is a bit vague.
>
>It's from TBR 21 Scope section (page 7) It states the following:
>
>"This TBR covers TE which is capable of originating a circuit-switched
>call using Dual Tone Mult Frequency (DTMF) signalling and/or receiving an
>incoming circuit-switched call. Other signalling methods (e.g.
>disconnect signalling) if provided in the terminal and intended to be used
>in certain European countries are subject to the appropriate national
>Regulations in respect of that feature, in addition to this TBR. Also
>signaling for supplementary features (e.g. register recall, reception of
>metering pulses from network) if provided in the terminal, and intended to
>be used in certain European countries, are subjected to the appropriate
>National Regulations."
>
>Thanks in advance.
>
>Duane
