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

Does the "Balance share" function comply with priorities in dialing plans?

Yes, it complies. Example: prefix 0048 added 3 times, once with priority 0 and balance...

What windows versions are supported for SipLink and Vippie?

Windows 2000, Windows XP, Windows Vista, Windows 7. No matter is it x86 or x64 copy.

Can the speed dial feature be used in conjunction with 2-stage dialing?

Yes. When a client is recognized by the system (when calling from a registered number or after...

What do I do if I do not see active calls in VSC?

Turn on active calls in VSM The operation will be done on the server On the server open VSM...

Can customers buy accounts or add funds online?

Yes, responsible for this part is the OnlineShop module. It consists of two parts of the web...