Chapter 11. Dial Plan
11-18 ATLAS 550 User Manual 61200305L1-1
SWITCH TYPE
Write security: 3; Read security: 5
Defines the type of PRI switch that the ATLAS 550 is going to emulate. If con-
nected to another ATLAS 550, both need to be set to the same switch type.
FIRST 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).
NUMBER OF DS0S
Write security: 3; Read security: 5
Specifies the number of DS0s ATLAS 550 uses for this endpoint.
STRIP MSD
Write security: 3; Read security: 5
Strips a selected quantity (choose from N
ONE
, 1, 2,and3)oftheMostSignifi-
cantDigits(MSD)ofadialednumberpriortobeingforwardedoutoftheport.
Example:
A network port could be set to accept all calls beginning with 9 (9$), and
then with S
TRIP
MSD set to 1, all digits would be sent toward the network
except the leading 9.
NETWORK SPECIFIC
FACILITY
Write: 3; Read: 5
Enables the sending of appropriate information to the PSTN. The default
for this option is N
ORMAL
, and in this case no Network Specific Facility
information element is sent. Unless one of the services listed below is sub-
scribed to, the selection should remain set to N
ORMAL
.
The list below indicates services that may be subscribed to from the PSTN.
These services require that specific information (such as a Network Specific
Facility information element) be sent to the network during call setup.
•Lucent5E •NorthernDMS100
• Nation ISDN • AT&T 4ESS
S
TRIP
MSD does not affect C
ALL
A
CCEPT
criteria. All of the digits
(including the MSDs that are subsequently stripped) are used as
accept criterion.
•AT&TSDN •NationalISDNINWATS
• AT&T Megacom 800 • Nortel Private Network
– AT&T Megacom • Nortel InWats
– AT&T Accunet • Nortel OutWats
• AT&T Long Distance • Nortel Foreign Exchange
•AT&TInternational-800 •NortelTieTrunk
• AT&T Dial-It 900/Multiquest
