ANALOG MODULATION MODE
3-61
Editing a tone standard
Pressing the
[Edit Standard]
key when in the
Sequential Calling Tones Utility
menu (Fig. 3-56)
will produce the
Edit Sequential Tones
Utility, see Fig. 3-60, which allows a user defined tone
system to be set up.
All editing is carried out in a tone standard called TEMP which is not stored beyond switch off.
To ensure that the alterations are available for future use the newly defined tone standard must be
saved to non-volatile storage in either USER1 or USER2.
The editing facility allows the user to define the frequency of each of the 16 tones in the system
and to set the default duration of each tone in the sequence and the gap between tones (if any). All
other settings are handled in the normal
Sequential Tones Utility
menu.
The currently selected tone standard may be copied into the TEMP working space using the top
left soft key (shown
[CCIR to TEMP]
in Fig. 3-60) and often this is a convenient way to start,
particularly when the user defined system is similar to one of the standard systems.
To edit the system in TEMP use
[Tone Number]
to select the number of the tone to be edited (0 to
15) and after pressing
[Tone Freq.]
enter the new frequency to be assigned to this tone number.
Select other tones in the system by means to the
[Tone Number]
key or use the
[Next Tone]
and
[Previous Tone]
keys to step through the list. Enter the frequencies of the tones and then use
[Default Duration]
and
[Tone Gap]
to set the times in milliseconds for the default duration of
each tone and the gap between each tone.
Finally store the user defined tone system parameters in USER1 or USER2 by pressing
[Store to
USER1]
or
[Store to USER2].
Note that when using the DTMF tone signalling capability no editing facility is provided.
Changes to the default settings are made directly on the
Calling Tones Utility Menu
.
Fig. 3-60 Edit sequential tones standard menu