International call progress tones for IP-PBX and VoIP telephony

Telephone Line Signalling

Stutter dial tone

  • Also known as the Stutter dial tone.
  • A tone advising that the exchange is ready to receive call information and inviting the user to start sending call information, at the same time reminding the user that special conditions apply to the termination from which the call is being made.

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Related product: CPT-Master tone generator app