ZyXEL Communications ISDN Terminal Adapter Omni.Net Lite - Manual (Page 49)

Omni.Net Lite User’s Guide
Chapter 2 Using the Utility 48
• Call Hold
• Call Waiting
• Call transfer
• Three-Way Conference
Note: To take full advantage of the supplementary voice services available though
the TA's phone ports, you will need to subscribe to the services from your local
telephone company.
2.12.4.1 The Flash Key
Flashing means to press the hook for a short period of time (a few hundred milliseconds)
before releasing it. On newer telephones, there should be a "flash" key (button) that generates
the signal electronically. If the flash key is not available, you can tap (press and immediately
release) the hook by hand to achieve the same effect. However, using the flash key is
preferred since the timing is much more precise. With manually tapping, if the duration is too
long, it may be interpreted as hanging up by the TA.
You can invoke all the supplementary services by using the flash key. Commands for
supplementary services are listed in the table below
After pressing the flash key, if you do not issue the sub-command before the default sub-
command timeout (2 seconds) expires or issue an invalid sub-command, the current operation
will be aborted.
2.12.4.2 Call Hold
Call hold allows you to put a call (A) on hold by pressing the flash key.
If you have another call, press the flash key and then “2” to switch back and forth between
caller A and B by putting either one on hold.
Table 12 Flash Key commands
COMMAND SUB-COMMAND DESCRIPTION
Flash Put a current call on hold to place a second call.
Flash 0 Drop the call presently on hold or reject an incoming call which is
waiting for answer.
Flash 1 Disconnect the current phone connection and answer the incoming
call or resume with caller presently on hold.
Flash 2 1. Switch back and forth between the two calls.
2. Put a current call on hold to answer an incoming call.
3. Separate the current three-way conference call into two
individual calls (one is on-line, the other is on hold).
Flash 3 Create three-way conference connection.
Flash 4 Transfer the call to another phone.