A-12
DBS 576HD (USA) issued September 2001
576HD-50-700
Section 700 - Operation
2. From the User Needs and Tenant Trunk Groups Worksheets, TRS levels are determined. This list is created
by reviewing the different calling needs and assigning the most restrictions to the lowest TRS level and
working up to the least restriction level.
Table A-3. Example - Origination TRS Level Plan
Originator
TRS Level
TRS Level Properties
9
No Restriction
8
7
6
5
4
All long distance calls allowed except special numbers (976, 1900, 411,
operator access, collect calls, etc.)
Allow public emergency numbers
3
North America long distance calls allowed except special numbers (976,
1900, 411, operator access, collect calls, etc.)
Allow public emergency numbers
2
Local Calls Allowed
No long distance or special numbers (976, 1900, 411, operator access,
collect calls, etc.)
Allow calls to (205) 555-XXXX, (205) 556-XXXX, and (205) 557-XXXX
Allow public emergency numbers
1
Public emergency numbers only
0
No Outside Calling/PBX Centrex & Extension only
