Post Dial Delay

Created by Kelly Evans, Modified on Wed, 2 Apr at 8:44 AM by Kelly Evans

The Post Dial Delay (PDD) statistic measures the amount of time that passes between the processing of a SIP Invite and and it's associated 200OK final response. Calls attempts that result is a final error response (4XX - 6XX) are not included.

For Termination Vendor Trunk Groups, Post Dial Delay (PDD) measures the amount of time that passes between the sending of the SIP Invite to the vendor and the receipt of the 200OK response from the vendor.

For Origination Customer Trunk Groups, Post Dial Delay (PDD) measures the amount of time that passes between the sending of the SIP Invite to the customer and the receipt of the 200OK response from the customer.

For Termination Customer Trunk Groups, Post Dial Delay (PDD) measures the amount of time that passes from the receipt of a SIP Invite from the customer to the sending a 200OK response to the customer.

For Origination Vendor Trunk Groups, Post Dial Delay (PDD) measures the amount of time that passes from the receipt of a SIP Invite from the customer to the sending a 200OK response to the customer.

PDD = (sum of all PDDs from CDRs for all completed calls) / (sum of all completed calls) for the specified time range.

For Relationship level reports the calculation above is aggregated for all Trunk Groups of the same type (e.g. Termination Customer).

The Post Dial Delay statistics are available on the following reports:

Relationship Performance (Relationship or Trunk Group level reports)

Hourly Performance (Relationship level report)

Destination Performance (Relationship level report)

Relationship Percentage (Relationship level report)