How to control calls using Flash button on FXS Media Gateways

Control second incoming call during an active call

In case of the second incoming call during an active call:

• press R to put the active call on hold and to answer the second incoming call

• press R+1 to end the active call and to answer the second incoming call

Control one active call and one call on hold

In case you have one active call and one call on hold:

• press R to swap the calls (or R+2)

• press R+1 to end the active call and to resume the call on hold

Create an audio conference

In case you have one active call:

• press R 

• generate a new call 

• press R+3 to create an audio conference