ADTRAN Atlas 550 - Manual (Page 153)

Chapter 11. Dial Plan
61200305L1-1 ATLAS 550 User Manual 11-11
DUAL T1/PRI MODULE: NETWORK TERMINATION/PRI
When you are working in the network 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 PRI, the fol-
lowing configuration options are available:
S WITCH T YPE Write security: 3; Read security: 5
Defines the type of PRI switch to which the port is connected. If connected
to another ATLAS 550, both need to be set to the same switch type. The fol-
lowing 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
O UT #A CCEPT (see page 11-3) and O UT #R EJECT
(see page 11-5).
N UMBER OF DS0 S Write security: 3; Read security: 5
Specifies the number of DS0s ATLAS 550 uses for this endpoint.
O UTGOING N UMBER
C ONVERSION
Write security: 3; Read security: 5
Converts outgoing (towards the network) numbers to the selected number-
ing plan and type option.
A S DIALED Sends the digits provided as an unknown number type.
ISDN-N ATIONAL
PREFERRED
Regardless of what type of number is received, the outgoing number is sub-
stituted with ISDN-National as the number plan and type. Ten digits are
always sent to the network. Leading ones, if present, are stripped out and
the area code (provisioned under
D IAL P LAN /G LOBAL P ARAMETERS ) is
added, if only seven digits are supplied. This action may be required in
areas with ten-digit local dialing.
ISDN-
S
UBSCRIBER
PREFERRED
Examines the incoming number and if seven digits are received or if a ten-
digit number is received with an area code that matches the area code pro-
visioned in the global parameters, the number is forwarded to the network
as a seven-digit number defined as ISDN-Subscriber number plan and type.
One HDLC resource is used by each PRI or each Packet Endpoint.
• Lucent 5E • Northern DMS 100
• National ISDN • AT&T 4ESS