This parameter indicates the expected minimum number of digits to receive if Overlap Digits Reception ENABLED.
Valid values are: All integers in the range [0, 32] If this paramter is set to a non-zero value, the gateway will compare the received number of digits to the specified value once an overlap digit reception end event occurs. If the received number of digits is inferior to this value the call will be cleared with ISDN cause code 28 (invalid number format - address incomplete). To disable this parameter just set this value to 0.