You can refer to the example below:
Scenario 1:
Configure the cadence on tone 3, making it play continuously with frequency 1.
<Huawei> system-view
[Huawei] voice
[Huawei-voice] tone 3
[Huawei-voice-tone-3] tone-cadence continus 1
Scenario 2:
[Huawei-voice-tone-3] tone-cadence sequence 400 200 1 500 200 2
Set up to 2 cadences. The first one plays 400ms, then begins a silence period that lasts 200ms; the second plays for 500ms, and then begins a 200ms' silence. The values '1' and '2' are base-frequency-flags, which should to be converted to binary numbers as follows:
1 == 0001 frequency 1
2 == 0010 frequency 2
3 == 0011 frequency 1 and frequence 2
4 == 0100 frequency 3
5 == 0101 frequency 1 and frequency 3
......
After the above configuration, the tone that comes out when one picks up the phone sounds almost the same as before, except that the cadence differs.
# Restores the default cadence
[Huawei-voice-tone-3] undo tone-cadence
For details, please refer to this link:
https://support.huawei.com/hedex/pages/EDOC1000085855AEG05127/13/EDOC1000085855AEG05127/13/resources/dc/en-us_topic_0012434598.html?ft=0&fe=10&hib=10.1.16.1.6.42&id=EN-US_TOPIC_0012434598&text=tone-cadence&docid=EDOC1000085855