- ETS 300 439: Business TeleCommunications (BTC); Transmission characteristics of digital
Private Branch eXchanges (PBXs)
- TBR21: Attachment requirements for pan-European approval for connection to PSTN of
TE (excluding TE supporting the voice telephony service) in which network addressing, if
provided, is by means of DTMF signalling
4.8.1.2.4 Environment Classes
- ETS 300 019: Environmental conditions and tests for telecommunication equipment:
• Part 1-1: Storage
• Part 1-2: Transportation
• Part 1-3: Environmental conditions
4.8.1.2.5 Eco Design
ISO 14040: Environmental management – Life cycle assessment – Principles and framework
(1997)
4.8.2 Hardware configuration
4.8.2.1 Overview
Commercial Serial number: 3GV27014xx
Technical Serial number: 3GV26014xx
Note:
xx represents 2 letters depending on country.
Chapter
4
&'(
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