2N Helios User And Service Manual page 36

Account of parameters 941, 942, 943, 944
Busy tone
Tone time
500
Example:
Tone – space difference is
Note:
Increase parameter 944 also when Hélios is placed in the hall or corridor with a large
decay time.
Account of parameters 951, 952, 953
Ringing tone (example)
Ringing tone
Period
Parameter 942
Parameter 943
Space
time
250
500 – 250 = 250 ms ... Set parameter 944 to 300 ms.
Long space
Param. 952
Param. 953
36
At this time Helios detects,
that ringing tone had ended.
Param. 953