ADTRAN Atlas 550 - Manual (Page 162)

Chapter 11. Dial Plan
11-20 ATLAS 550 User Manual 61200305L1-1
DUAL T1/PRI MODULE: USER TERMINATION/RBS
When you are working in the user termination section of the D IAL P LAN
menu, when S LT is defined as T1/PRI-2 , and when S IG is set to RBS, the fol-
lowing configuration options are available:
F IRST DS0 Write security: 3; Read security: 5
Defines to the ATLAS 550 the first DS0 for this endpoint. The ATLAS 550
uses DS0s, starting with this selection, to send and receive calls to and from
the network (PSTN). The outgoing calls which are allowed or restricted
over these DS0s are set by the
O UTGOING C ALL A CCEPT and R EJECT N UM -
BERS (discussed in the ATLAS 550 User Manual).
N UMBER OF DS0 S Write security: 3; Read security: 5
Specifies the number of DS0s ATLAS 550 uses for this endpoint.
DS0 S A VAILABLE Read security: 5
Indicates which DS0s of the T1 have been defined in this switched endpoint
(indicated by “! “), in another switched endpoint (indicated by “s”), or in a
dedicated map (indicated by “n”).
S IGNALING M ETHOD Write security: 3; Read security: 5
Defines to the ATLAS 550 the type of signaling to be used across this trunk.
The selected signaling must match that being used by the user equipment
(PBX). The choices are as follow:
0-9 This DS0 is available. The digit that displays in this field represents
the last digit of the DS0 number.
* This port is requesting this DS0 for this connection, but the DS0 is not
yet activated.
! This DS0 is used by this endpoint.
s This DS0 is used elsewhere in the switched D IAL P LAN .
S This DS0 is in the switched dial plan and conflicts with this endpoint.
n This DS0 is used in one or more D EDICATED M APS .
N This DS0 is in one or more D EDICATED M APS and conflicts with this
endpoint.
• E&M Immediate • E&M Wink • Loop Start
• Ground Start • Feature Group D
The ATLAS 550 converts signaling types between network and user
terminations.