AudioCodes E-SBC User Manual page 901

CHAPTER 44 Loading Auxiliary Files
You can create up to 32 different Call Progress Tones, each with frequency and format attributes.
The frequency attribute can be single or dual-frequency (in the range of 300 to 1980 Hz) or an
Amplitude Modulated (AM). Up to 64 different frequencies are supported. Only eight AM tones, in
the range of 1 to 128 kHz, can be configured (the detection range is limited to 1 to 50 kHz). Note
that when a tone is composed of a single frequency, the second frequency field must be set to zero.
The format attribute can be one of the following:
■ Continuous: A steady non-interrupted sound (e.g., a dial tone). Only the 'First Signal On time'
should be specified. All other on and off periods must be set to zero. In this case, the parameter
specifies the detection period. For example, if it equals 300, the tone is detected after 3
seconds (300 x 10 msec). The minimum detection time is 100 msec.
■ Cadence: A repeating sequence of on and off sounds. Up to four different sets of on/off periods
can be specified.
■ Burst: A single sound followed by silence. Only the 'First Signal On time' and 'First Signal Off
time' should be specified. All other on and off periods must be set to zero. The burst tone is
detected after the off time is completed.
You can specify several tones of the same type. These additional tones are used only for tone
detection. Generation of a specific tone conforms to the first definition of the specific tone. For
example, you can define an additional dial tone by appending the second dial tone's definition lines
to the first tone definition in the ini file. The device reports dial tone detection if either of the two
tones is detected.
The Call Progress Tones section of the ini file comprises the following segments:
■ [NUMBER OF CALL PROGRESS TONES]: Contains the following key:
'Number of Call Progress Tones' defining the number of Call Progress Tones that are defined in
the file.
■ [CALL PROGRESS TONE #X]: containing the Xth tone definition, starting from 0 and not
exceeding the number of Call Progress Tones less 1 defined in the first section (e.g., if 10
tones, then it is 0 to 9), using the following keys:
● Tone Type: Call Progress Tone types:
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
● Tone Modulation Type: Amplitude Modulated (1) or regular (0)
● Tone Form: The tone's format can be one of the following:
◆
◆
◆
● Low Freq [Hz]: Frequency (in Hz) of the lower tone component in case of dual frequency
tone, or the frequency of the tone in case of single tone. This is not relevant to AM tones.
[1] Dial Tone
[2] Ringback Tone
[3] Busy Tone
[4] Congestion Tone
[6] Warning Tone
[7] Reorder Tone
[8] Confirmation Tone (analog interfaces)
[9] Call Waiting Tone - heard by called party (analog interfaces)
[15] Stutter Dial Tone (analog interfaces)
[16] Off Hook Warning Tone (analog interfaces)
[17] Call Waiting Ringback Tone (heard by the calling party)
[18] Comfort Tone
[23] Hold Tone
[46] Beep Tone
Continuous (1)
Cadence (2)
Burst (3)
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