380 3Com® VCX V7111 VoIP Gateway User GuideWhen the same frequency is used for a continuous tone and a cadence tone, theSignal On Time parameter of the continuous tone must have a value that is greaterthan the Signal On Time parameter of the cadence tone. Otherwise the continuoustone is detected instead of the cadence tone.The tones frequency should differ by at least 40 Hz from one tone to other definedtones.For example: to configure the dial tone to 440 Hz only, define the following text:Figure 141 Defining a Dial Tone Example#Dial tone[CALL PROGRESS TONE #1]Tone Type=1Tone Form =1 (continuous)Low Freq [Hz]=440High Freq [Hz]=0Low 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 secFirst Signal Off Time [10msec]=0Second Signal On Time [10msec]=0Second Signal Off Time [10msec]=0Figure 142 Example of Ringing Burst#Three ringing bursts followed by repeated ringing of 1 sec on and 3 sec off.[NUMBER OF DISTINCTIVE RINGING PATTERNS]Number of Ringing Patterns=1[Ringing Pattern #0]Ring Type=0Freq [Hz]=25First Burst Ring On Time [10msec]=30First Burst Ring Off Time [10msec]=30Second Burst Ring On Time [10msec]=30Second Burst Ring Off Time [10msec]=30Third Burst Ring On Time [10msec]=30Third Burst Ring Off Time [10msec]=30Fourth Ring On Time [10msec]=100Fourth Ring Off Time [10msec]=300Format of the Distinctive Ringing Section in the ini FileDistinctive Ringing is only applicable to V7111/FXS gateways. Using the distinctive ringingsection of this configuration file, the user can create up to 16 distinctive ringing patterns.Each ringing pattern configures the ringing tone frequency and up to 4 ringing cadences. Thesame ringing frequency is used for all the ringing pattern cadences. The ringing frequency
