Step 6:
End Call
·
The originator of a Three-Way Call can disconnect the third party with a
flash hook.
·
The originator can disconnect all parties by going on-hook (Three-Way
Calling) or PBX call conferencing connects all remaining parties if one goes
on-hook.
Transferring a call:
Note:
TLS-5C/D users must first set Conference Type to PBX call conference
to be able to transfer calls.
Step 1:
Establish call
·
With devices connected to three or more TLS-5 lines, establish a call
between two parties.
Step 2:
Flash the line
·
Execute a hook switch flash, then dial the third party.
Step 3:
Announce the call
·
After the third party answers, announce the transfer, then hang up.
If the caller hangs up before the third party answers, the transfer is
aborted.
Calling Party Control
The U.S. telephone network typically uses Calling Party Control (also known
as Calling Party Supervision), meaning that even though the called party
hangs up, the connection may be re-established to the calling party when the
phone is taken off-hook again. The calling party must hang up for the called
party to be fully disconnected before initiating a new call. The telephone
network will time out and disconnect the call within 5-20 seconds (based upon
traffic activity and priority of other tasks), giving the called party dial tone
when he goes off-hook again.
The TLS-5 provides Calling Party Control using the Device Disconnect Timer
(Function 09 default = 2.0 seconds). If the called party goes on-hook and
comes off-hook again before the Device Disconnect Timer expires, which
would then issue the Forced Disconnect (Function 38, default = 850
milliseconds), and/or Tone Following Disconnect (Function 39, default = dial
tone), the call will be re-established. However, if the calling party goes
on-hook, the Forced Disconnect signal is issued two (2) seconds later to the
called party.
The only exception is when a transfer/conference call has taken place. If a
three way connection has been established, the first party to go on-hook causes
no action to be taken. If one of the remaining two parties stays off-hook after
the other party goes on-hook, a two second delay occurs before sending the
Chapter 4: Operation
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E
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