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8-31
Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
OL-4277-01
Chapter 8 Profile and Web Page Parameters and Defaults
Parameter Details
The syntax of the ReorderTone parameters is:
ReorderTone:Sequential,NumOfFreqs,TFreq_1,TAmplitude_1,TFreq_2,
TAmplitude_2,TFreq_3,TAmplitude_3,NumOfOnOffPairs,OnTime_1,OffTime_1,
OnTime_2,OffTime_2,OnTime_3,OffTime_3,NumOfRepeats,TotalToneTime
where:
• Sequential specifies whether multiple frequencies in a tone play
simultaneously (0) or sequentially (1). Set to 0 for a tone with one frequency.
• NumOfFreqs is the number of frequencies in the tone (1, 2, or 3). The
frequencies can play simultaneously or sequentially, depending on the
Sequential setting.
• TFreq_1, TFreq_2, and TFreq_3 are the transformed frequencies of the first,
second, and third frequencies, respectively. Calculate each value as follows,
where Frequency is the desired frequency in Hz:
32767 * cos(2 * pi * Frequency/8000)
The range of each value is –32768 to 32767.
Set a value to 0 if the frequency does not exist.
For negative values, use the 16-bit 2’s complement value. For example, enter
–1 as 65535 or as 0xffff.
• TAmplitude_1, TAmplitude_2, and TAmplitude_3 are the transformed
amplitudes (volumes) of the first, second, and third frequencies, respectively.
Calculate each value as follows:
A * 32767 * sin(2 * pi * Frequency/8000)
where:
–
A is the amplitude factor, which controls the volume. Calculate this value
as follows, where k is the desired volume in dBm and n is the number of
frequencies (1, 2, or 3):
A = 0.5 * 10
((k + 9 – (n – 1) * 3) / 20)
For example, for a one-frequency tone with a volume of –19 dBm,
A = 0.5 * 10
((–19 + 9)/20)
= 0.16
–
Frequency is the desired frequency in Hz