NEC Univerge sv8500 Manual page 571

Available since the first version for UG50.
Note 2:
This feature is available when (1), (2), or (3) is stored in a Desktop Terminal.
Note 3:
Interaction with other features
1. When using Preset Conference/Progressive Conference
If conference leader will use line connected to MCMG, use a line that can send release signal.
2. When using Blind Transfer
If you transfer a call to a line connected to MCMG, the following are required to perform call transfer:
- The destination responds to the call
- The destination receives polarity inversion signal.
3. When using Location Diversity
MG data need to be assigned to all channels although physical connection with lines is not necessary.
MCMG [SCA-4LC2COTA/MG-4LC2COTA]
VOL.2-318