length of the message is controlled by the vm. so you'd have to get into the vm programming for that (cosessions).

1-2-22 is the timer setting for the no answer (system wide setting)

1-1-22 is the did conversion tables. this is where you tell the system what digits you receive will go to a specified station.

here's a list of all the programs dealing with DID's:

Card Interface Slot Assignment 7-1
Trunk-to-Trunk Group Assignment 3-03
Trunk Type Selection 3-91
Tie Line Type Assignment 3-14
Tie Line First Ring Pattern Selection 1-1-34
Tie Line Delay Ring Pattern Selection 1-1-53
DID Line Ringing Pattern Selection 1-1-55
Tie Line Prepause Time Selection 3-16
Tie Line Wink/Delay Signal Detect Timeout Selection 3-25
Tie Line Answer Detect Time Selection 3-17
Tie Line Delay Ringing Time Selection 1-1-07
Tie Line Release Detect Time Selection 3-18
Tie Line Length of Wink Signal Selection 3-21
Tie Line Length of Delay Signal Selection 3-22
Tie Line Send Tone Selection 3-27
Tie Line Reorder Tone Selection 3-28
Digit Add/Del for Tie Line Networking Assignment 5-00
DID Digit Length Selection 1-1-20
DID Forward Station Number for Busy or Undefined Digit 1-1-23
DID Digit Conversion Assignment 1-1-21
DID Digit Conversion Table 1-1-22
Class of Service (Station) Feature Selection 2 1-8-08=4-3,4-4,5-7
Station to Class of Service Feature Assignment 4-17
DID Limit to Tenant Assignment 2-09
Trunk to Tenant Assignment 2-01
Line Key Selection 2-05
Line Key Selection for Tenant Mode 2-06
Line Key Selection for Telephone Mode 4-12
Telephone to Tenant Assignment 4-09
CO/PBX Ring Assignment (Day Mode) 4-01
CO/PBX Ring Assignment (Night Mode) 4-02
Extension Line Key Ring Assignment (Day Mode) 4-37
Extension Line Key Ring Assignment (Night Mode) 4-38