User guide
Three-Party Calls16
Operating the Forum IPhone 512
Three-Party Calls
You are making a call, e.g. on the trunk key 1 , its LED indi-
cator is lit. You can now forward the call, execute an enquiry,
switch back and forth between two callers (“toggle”) or set up a
conference. You can use any available trunk key / for
three-party conference calls.
Enquiry
While telephoning, you can make an enquiry to another caller.
Note: The enquiry function cannot be used to transfer calls on
SIP telephones. Alternatively, press the transfer key .
1. Press an available trunk key, e.g. trunk key 2 .
You hear the internal dialling tone. The person calling is put on
hold and now hears music on hold.
2. Now dial the call number of the caller desired and make the
enquiry call.
3. Press the goodbye key to terminate the enquiry call.
4. Press the trunk key where the first caller is waiting. You are
now connected with the caller on hold once again.
Note: If after ending the enquiry call you put down the handset,
after a few seconds you will automatically be called back with the
connection on hold.
Toggling
While you are conducting an enquiry call, the first caller is put on
hold (see page 16). Now you can toggle between callers (switch
back and forth).
1. Press the trunk key (e.g. ) of the caller waiting currently.
The other caller is put on hold. The LED indicator of the trunk
key of the respectively held caller blinks during this process.
The held caller hears music on hold.
2. Press the trunk key of the caller waiting to switch to that caller.
The other caller is now put on hold.