Clipcomm CG-410, Руководство пользователя, Страница: 24 / 35

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when it detects the busy tone or congestion tone.) Note that you also have to configure the tone
parameters manually if you want your CG-410 to be connected to your office’s PBX or key-phone
system. Please contact your telephone system manager for more information.
The table below named “Call Progress Tones (Freq: Hz, Ton & Toff: msec)” shows the “User Defined”
menu which is selected on the “Select Country” drop down list. Both ‘Freq1’ and ‘Freq2’ mean the
frequency of dual tones detected. If it is in a monotone, you should set the same value for those two
parameters. ‘Ton’ and ‘Toff’ describe ‘cadence’ of each tone that should be detected. ‘Ton’ is the
duration of ‘tone-on-time’ and Toff is that of ‘tone-off-time’.
To help your understanding, refer to the specifications of Korea below. The dial tone is formed by a
mixture of frequency - 350Hz and 440Hz. Since the periods Ton1, Toff1, Ton2, and Toff2 are set as ‘0’,
you can hear a continuous tone. In the same manner, the busy tone is formed by a mixture of
frequency – 480Hz and 620Hz. Since the periods Ton1, Toff1, Ton2, and Toff2 are set as ‘500’, you
can hear a 500ms tone every 500ms.
Now you can configure the “User defined” page too. Fill in the blanks properly as predefined countries’
table. To detect the monotone, you should fill in the “high” and “low” column with the same index. For
example, if you fill them with 400, CPTD will detect the 400Hz as below.
If you want your CG-410 to detect more complex tones that cannot be described exactly by these
parameters, please contact Clipcomm technical support personnel.