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Understanding Spearline Post Dial Delay (PDD)

Spearline

The standard definition of PDD can be defined as: “the time or delay that occurs from the time a number has been dialed, until the caller or called party hears ringing.” Spearline places out a number of test calls, which are set to answer automatically.

article thumbnail

Understanding Spearline PDD

Spearline

The standard definition of PDD can be defined as: "the time or delay that occurs from the time a number has been dialed, until the caller or called party hears ringing." Spearline places out a number of replicate test calls, which are set to answer automatically, so in a typical test call flow, ringing won't be heard.