User guide

Three-Party Calls 21
Operating Forum IPhone 545 SIP Telephone
Three-Party Calls
You are making a call, e.g. on the trunk key 1 , its corre-
sponding LED indicator is lit. You can now forward the call, exe-
cute an enquiry, switch back and forth between two callers (“tog-
gle”) 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, use the
Transfer softkey or
the transfer key .
1. Press an unassigned trunk key, e.g. trunk key 2 .
Alternatively press the
Hold softkey and then press an
available trunk key.
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 or press
the
Hold softkey. 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.