Meridian Nortel 1 Option 11C Technical Reference Manual page 437

NT1R20 Off Premise Station (OPS) analog line card Page 437 of 544
OPS line terminations with loudness characteristics designed for other
applications may also impact transmission performance. For example,
wireless portables loudness characteristics are selected for connections to
switching systems for wireless communication systems; if deployed in an
OPS arrangement without due consideration for these characteristics, the
result could be a significant deviation from optimum loudness performance.
Option 11C and 11C Mini Technical Reference Guide