NEC UNIVERGE SV9100 Manual page 121

Part 2: VoIP Manual 121
The conference size supported is three party conference.
SV9100 Requirements
The following information provides the feature requirements.
Main Software
SV9100 R1.0 software or higher
License
The system must be licensed for standard SIP terminals with a BE114054 (License 5111).
Service Condition
This feature does not use the conference resources on the system, the standard SIP extension operates
the conference by combining two voices and sends it to the other conference member.
The sequence supported is below.