Toa VS-900 - Manual (Page 32)

3-4
CHAPTER 3. CONVENIENT FUNCTIONS
[Transfer to the third party]
Step 3. To connect the third party with the waiting party, replace the handset or press the [C] key.
Conversation begins between the second and third parties.
Exceptions
(1) Conversations cannot be transferred to a substation. (The "Call Hold" function remains operational.)
(2) Conversations cannot be transferred to an outside line telephone. (The "Call Hold" function is also
disabled.)
No. 91
No. 93
No. 91 No. 92
or
C
First party Second party
Third party
Substation Outside line