User's Manual

BCM450 System Start Up
NN40010-317 Issue 1.2 BCM450 Rls 6.0 57
1. In this example the system has a single PRI Digital Trunk Media Bay
Module installed and the clock source has been set to Primary External
to reflect this. The protocol should also be set as required. In this
example Euro has been selected (other options are SL-1 and QSIG).
2. Make any changes as required.
PRI Module-Specific Settings
Attribute
Value
Module/line type
Trunk type
All trunks
Indicates the type of trunks. This field is read-only for all modules except DTM modules.
Protocol
NI-2, DMS-100,
DMS-250,
AT&T4ESS, SL-1,
Euro, ETSI Q.Sig
PRI
Choose the trunk protocol used by your service provider.
The supported protocols are:
PRI-T1: NI (NI-1 and NI-2), DMS-100, DMS-250, AT&T4ESS, SL-1
PRI-E1: ETSI QSIG, Euro, SL-1
Note: SL-1 and ETSI QSIG require an MCDN keycode to display.
BRI: Protocol can also be selected on BRI T-loops under the Configuration > Resources
> Telephony Resources.
Note: Always check the line protocol with the central office.
NSF
Extension
None, WATS,
ALL
PRI
The Network Specific Facilities (NSF) information element is used to request a particular
service from the network. Settings are based on the type of switch to which the line
connects.
Suggested settings:
DMS-100/250: NONE
Siemens ESWD, Lucent 5ESS: WATS
GTD5, DMS-10: ALL
When you select NONE, the NSF extension bit is not set for any service.
When you select WATS, the NSF extension bit is set for unbanded OUTWATS calls.
When you select ALL, the NSF extension is always set for all CbC services.
Appears only for NI protocol.
Protocol
type
User, Network
PRI
When you select SL-1 protocol, an additional setting, Protocol type, appears.
SL-1 protocol is a private networking protocol. This allows you to designate a BCM node
as a Network (controller). The default setting is User (client). In public network
configurations, the CO is generally considered the Network side or controller.
Applies to SL-1 protocol only.
B-channel
selection
sequence
Ascending
Sequential
Descending
Sequential
PRI
Defines how B-channel resources are selected for call processing.
Answer
timer
1, 2, 3, 4, or 5
sec.
E&M
PRI
Set the minimum duration of an answer signal before a call is considered to be answered.
Disconnect
timer
60, 100, 260, 460,
or 600
milliseconds
Loop
T1
Specify the duration of an Open Switch Interval (OSI) before a call on a supervised
external line is considered disconnected. This setting must match the setting for the line
at the central office (CO).
You must enable disconnect supervision by changing the Line Trunk mode attribute.
Under the Telephony Services sub-heading, choose Lines and Line/trunk Data.
Clock
Source
Primary External
Secondary
External
T1
PRI
*BRI
S/T
DASS2