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Regionalization 
You can use the VoIP > Advanced VoIP Setup > Regionalization menu to configure the VoIP Subsystem for 
local operating conventions. The menu options include: 
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•  Other 
Note
: In some fields below you might see default values that are valid for the United States only. If you 
are reviewing or configuring VoIP settings for other regions, those default values do not apply. 
Call Progress Tones 
Call progress tones are specified by a list of values indicating the number of tones, number of on/off 
transitions, frequency/signal level pairs, and tone on/off times. The format is: 
no_of_tones, no_of_times, duration,  
   {tone_element1_freq, tone_element1_db, tone_element2_freq, tone_element2_db, …},  
      {tone_on_time1, tone_off_time1, tone_on_time2, …} 
where: 
no_of_tones
 is the number of tone elements that are combined to form a tone. Each tone element 
has an associated frequency and amplitude. Up to four tone elements can be combined – to form a 
chord, or played in sequence – as a tune (see no_of_times). A negative no_of_tones indicates 
that the tones will be synchronized to a two-second timer (relevant for multi-port ATAs only). 
no_of_times
 is the total of both on-to-off and off-to-on transitions in the tone pattern. If this value is 
positive, it produces a composite tone. If it is negative, the tones are played in sequence. Zero 
produces a continuous composite tone 
duration
 is the length of time in seconds that the call progress tone will be played. A value of zero 
means that the tone will be played until instructed otherwise. 
tone_elementX_freq
 and tone_elementX_db represent the frequency (Hz) and signal level (dB) of 
each tone. A negative frequency is used to modulate the prior tone components summed together. 
24                                                                                                               X6v VoIP Features Technical Reference