SIP Phone who has 3-way conference capability

CONFERENCE
Description
SIP Phone who has 3-way conference capability can make conference call by Phone itself without utilize system’s conference feature. Also, SIP Phone can utilize system’s conference feature – Conference Room and Conference Group. To serve system conference for SIP Phone, a mixing device - MCIM is required.
Operation
SIP Phone Self Conference
1. Make a call and connected.
2. Press [CONFERENCE] button.
3. Dial 2nd call and connected.
4. Press [JOIN] button. Or,
1. Make a call and connected.
2. Press [HOLD] button.
3. Dial 2nd call and connected.
4. Press [3-WAY CONFERENCE] button. System Conference Feature
1. Conference Room : refer to 2.23.1 Conference Room – SLT Operation
2. Conference Group : refer to 2.23.4 Conference Group – Operation
3. System need to be equipped MCIM module to mix voice