4.3.1 What is This Tone?
4.3 What is This Tone?
4.3.1 What is This Tone?
While on-hook
Ring Tones
The following tones are programmable allowing recognition of call type (Outside, Intercom or Doorphone).
When going off-hook
Dial Tones | | | | |
Tone 1 | | 1 s | | |
Normal | | | | |
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