17.81. VCMN - Voice compression not allowed 
Feature:
Voice Compression VC
Function:
Because only voice signals can be compressed, a COT in which the
parameter VCMN = 'Voice compression not allowed' is set,
must be assigned before the Voice Compression feature is set for the trunks in which
the
type of connection (voice or data) is unknown or to which an external voice compression
unit
is connected.
AMO Interrelationships:
Configure FEASU features: VOICO Configure Voice Compression.
Device types:
Digital CO trunk circuits and interface circuits:
Protocol variants:
For example, CORNV33, ECMAV2, PSS1V2