CToneAmplitude
This Textual Convention defines amplitude expression of the programmable tone to be played or detected. This textual convention is a combination of Amplitude Expression, Amplitude conjuncture and Amplitude delimiter. Amplitude Expression - The amplitude expression is a single numeric value or a string of numeric values with the notation '+' or '/'. The numeric values are the amplitude's decimal values in dBm. The numeric values are usually negative. '+' - Amplitude conjuncture. The Amplitude Expression to the left and to the right of this notation are emitted simultaneously. The Amplitude Expression preceded this notation is the amplitude expression of the Frequency Expression preceded '+'. The Amplitude Expression followed this notation is the amplitude expression of the Frequency Expression followed '+'. '/' - Amplitude delimiter. The Amplitude Expression to the left of this notation is emitted before the Amplitude Expression to the right. The Amplitude Expression preceded this notation is the amplitude expression of the Frequency Expression preceded '/'. The Amplitude Expression followed this notation is the amplitude expression of the Frequency Expression followed '/'. For example, the amplitude of USA Recall Dial Tone is '-10+-10' and the frequency is '350+440'. It means amplitude of the both frequencies 350Hz and 440Hz are emitted simultaneously, each with amplitude expression -10 dBm.