MP-1xx SIP User’s Manual 7. Configuration Files
Version 4.4 145 March 2005
Figure 7-2: Defining a Dial Tone Example
#Dial tone
[CALL PROGRESS TONE #1]
Tone Type=1
Low Freq [Hz]=440
High Freq [Hz]=0
Low Freq Level [-dBm]=10 (-10 dBm)
High Freq Level [-dBm]=32 (use 32 only if a single tone is required)
First Signal On Time [10msec]=300; the dial tone is detected after 3 sec
First Signal Off Time [10msec]=0
Second Signal On Time [10msec]=0
Second Signal Off Time [10msec]=0
7.1.2 Format of the Distinctive Ringing Section in the ini File
Distinctive Ringing is only applicable to MP-1xx/FXS gateways. Using the distinctive ringing
section of this configuration file, the User can create up to 16 distinctive ringing patterns.
To instruct the gateway to play a different Ringing tone, append the string ‘-dr#’ (# can be 0 to 15)
to the Alert-Info header in the Invite message.
In the following examples, the MP-1xx plays the Ringing tone with ‘Ringing Pattern’ equals 2. If
the number of the ‘Ringing Pattern’ isn’t found, the default Ringing tone (0) is played.
Alert-Info: <Bellcore-dr2>
Alert-Info: http://127.0.0.1/Bellcore-dr2
Each ringing pattern configures the ringing tone frequency and up to 4 ringing cadences. The
same ringing frequency is used for all the ringing pattern cadences. The ringing frequency can be
configured in the range of 10 Hz to 200 Hz with a 5 Hz resolution. Each of the ringing pattern
cadences is specified by the following parameters:
• Burst Ring On Time – Configures the cadence to be a burst cadence in the entire ringing
pattern. The burst relates to On time and the Off time of the same cadence. It must appear
between “First/Second/Third/Fourth” string and the “Ring On/Off Time” This cadence rings
once during the ringing pattern. Otherwise, the cadence is interpreted as cyclic: it repeats for
every ringing cycle.
• Ring On Time - specifies the duration of the ringing signal.
• Ring Off Time - specifies the silence period of the cadence.
The distinctive ringing section of the ini file format contains the following strings:
• [NUMBER OF DISTINCTIVE RINGING PATTERNS] – Contains the following key:
“Number of Distinctive Ringing Patterns” defining the number of Distinctive Ringing
signals that are defined in the file.
• [Ringing Pattern #X] – Contains the Xth ringing pattern definition (starting from 0 and not
exceeding the number of Distinctive Ringing patterns defined in the first section minus 1)
using the following keys:
Ring Type – Must be equal to the Ringing Pattern number.
Freq [Hz] – Frequency in hertz of the ringing tone.
First (Burst) Ring On Time [10 msec] – “Ring On” period (in 10 msec units) for the first
cadence on-off cycle.
First (Burst) Ring Off Time [10 msec] – “Ring Off” period (in 10 msec units) for the first
cadence on-off cycle.
Second (Burst) Ring On Time [10 msec] – “Ring On” period (in 10 msec units) for the
second cadence on-off cycle.
Second (Burst) Ring Off Time [10 msec] – “Ring Off” period (in 10 msec units) for the
second cadence on-off cycle.
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