Operating Modes - Siemens SANTIS-ab User Manual

2. Operating Modes

The connection to the public telephone network as well as the
selection of one of the following three operating modes must be
done by an authorized person, e.g. telecom staff:
1. NT+2ab
2. NTBA
3. Pairgain
S- and a/b-interfaces available
Only S-interface available
Only a/b-interfaces available
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