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ETSI ETS 300 362
- Private Telecommunication Network (PTN); Inter-exchange signalling protocol; Call offer supplementary service
- standard by European Telecommunications Standards Institute, 11/01/1994
- Publisher: ETSI
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Stage 3 of call offer supplementary service at Q ref pt. See DTR/ECMA-0002 (ECMA-TR/SVC) for service description. See ENV41005 for definition of stage 3. See ENV41004 for definition of Q reference point. To contain PICS proforma.