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Specifications

• DSP Series 2 and DSP-ONE Cards Compared

• DTMF Digit Specifications

• MF Digit Specifications

• Default Transmit Call Progress Tones

• Default Transmit Call Progress Tone Patterns

• Default Tone Patterns for CPA Detection

• CPA Tone Patterns

• Default CPA Tone Pattern Parameters

• CPA Pattern Parameter Definitions

• CPA Classes

• CPA Class Parameter Definitions

Digital Signal Processor
Multi-Frequency
A tone sent to the caller indicating the progress of the call. Examples include dial tone, busy tone, ringback tone, and comfort noise (digital cellular).