What is Post Dialing Delay (PDD)?

PDD stands for Post Dialing Delay, which is the time between the start of the call and the moment the phone of the called party starts ringing.
In other words PDD is considered as the time from the INVITE sent by an origination to the RINGING message from the termination. 
  • 389 Users Found This Useful
Was this answer helpful?

Related Articles

Calls are not getting connected, message "Destination has higher tariff's rate than...". How to allow such calls?

At first, please notice this option prevents losses on your system. Please make sure that you are...

Can users call each other?

Yes, users within VoipSwitch can call each other using phone numbers associated with their...

How to display account state information on an ip phone ?

There is a special page in the Web and Portal modules called get.aspx. Some ip phones have the...

Can I change the title "VSR System" to a title of my own?

Yes, it is possible. For VSR 1.9 - 2.2 in VSR.config file:...

How to modify scenario to play available time?

It is possible to change the existing scenarios to play the time when it's needed. The...