EXFO EXpert VoIP Test Tools - Manual (Page 67)

Test Results
EXpert IP 61
Call Manager Statistics (SCCP)

Post Dial Delay is the time in milliseconds between the transmission
of the last dialed digit to the CallManager and the reception of the
Alerting tone message.

Post Pickup Delay is the time in milliseconds between the reception of
the SCCP Open Receive Channel “Ack” message and the reception of
the first media RTP packet.