Grandstream Networks GXP21XX User Manual page 20

1. Initiate a Conference Call
 Establish a connection with two or more parties
Press CONF button

 Choose the desired line to join the conference by pressing the corresponding LINE button
Repeat previous two steps for all other parties that would like to join the conference. This

can be done at any time. However, if a new call comes in, the other calls will be placed on
hold and the host will have to individually re-join the held lines back into the conference by
repeating the previous two steps again
2. Cancel Conference:
 If after pressing the "CONF" button, a user decides not to conference anyone, press the
current active LINE button
 This will resume two-way conversation with the current line
3. End Conference:
 Press HOLD to end the conference call and put all parties on hold;
 To speak with an individual party, select the corresponding blinking LINE.
GXP21xx also supports Easy Conference mode. In Easy Conference mode, users can initiate conference
by calling another number when the current line is in talking or conference. Also the conference can be re-
established by pressing the ReConf softkey when the conference is on hold. Easy Conference mode can be
used combined with the traditional ways to establish the 5-way conference above.
1. Initiate a Conference Call:
 Establish one call
 Press CONF button and a new line will be brought up
 Dial the number and press SEND button to establish the second call
 Press CONF button again or press the ConfCall softkey to establish the 3-way conference
2. Join More Parties in Existed Conference:
 Establish conference call
 Press CONF button and a new line will be brought up
 Dial the number and press SEND button to establish the new call
Press CONF button again or press the ConfCall softkey to join the new party in the existed

conference
3. Hold Conference:
 During the conference, press HOLD button and the conference will be put on hold
- To resume the conference, press the ReConf softkey
- To split the conference and resume the call with each party, press the corresponding
4. End Conference:
 If the users decide not to conference after establishing the second call, press EndCall
softkey instead of ConfCall softkey/CONF button. It will end the second call and the screen
will show the first call/conference is on hold.
 During the conference, press EndCall softkey or hang up to end the conference
NOTE:

The party that starts the conference call has to remain in the conference for its entire duration, you
can put the party on mute but it must remain in the conversation. Also, this is not applicable when the
feature "Transfer on call hangup" is turned on.
Grandstream Networks, Inc.
:
line key
GXP21xx User Manual
Firmware version: 1.0.1.110
Page 19 of 48
Last Updated: 01/2012