AASTRA 4223 Professional for BusinessPhone User Guide - Manual (Page 132)

Glossary
BusinessPhone — Dialog 4223 Professional / Dialog 3213 132
Third party
A third connection (person), which can be
included in an ongoing two person
conversation.
The connection can be internal or external. See
section “
During Calls ” on page 35.
Tie line
An external line from the private network.
Transfer
During an internal or external ongoing call you
can make an inquiry and then transfer the call
to another party (internal or external). See
sections “
During Calls ” on page 35 and “ Useful
Hints ” on page 118.
Trunk line
A trunk line is the same as an external line. Can
be either digital or analog.