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Chapter 8 Profile and Web Page Parameters and Defaults
Parameter Details
8-28
Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
OL-4277-01
BusyTone, CallWaitTone, DialTone, DialTone2, and
RingBackTone Parameter Details
The following parameters specify tones that can consist of a single frequency or
of two frequencies that play simultaneously, and of a cadence with up to two
on-off pairs:
• BusyTone—Tone that plays when the called party’s line is busy
• CallWaitTone—Tone that plays to indicate that you have a call waiting
• DialTone—Tone that plays when the phone is ready to accept the first digit of
a telephone number or an IP address
• DialTone2—Secondary dial tone (for example, the dial tone that plays when
you dial a number to obtain an outside line)
• RingBackTone—Tone that plays to indicate that the called party’s line is
ringing
For the default values of these parameters, which are suitable for the United Sates,
see Table 8-4.
The syntax of these parameters is:
parameter:NumOfFreqs,TFreq_1,TAmplitude_1,TFreq_2,TAmplitude_2,
NumOfOnOffPairs,OnTime_1,OffTime_1,OnTime_2,OffTime_2,TotalToneTime
where:
• parameter is BusyTone, CallWaitTone, DialTone, DialTone2, or
RingBackTone.
• NumOfFreqs is the number of frequencies in the tone (1 or 2).
• TFreq_1 and TFreq_2 are the transformed frequencies of the first and second
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.