Lucent Technologies BCS Products Security Handbook Instructions Manual

Small Business Communications Systems 
Page 4-1  
4
BCS Products
Security Handbook  
555-025-600  Issue 6
December 1997
4
4Small Business 
Communications 
Systems
This chapter provides information on protecting the following communications 
systems:
nMERLIN II Communications System (page 4-6)
nMERLIN LEGEND Communications System (page 4-8)
nMERLIN Plus Communications System (page 4-16)
nPARTNER II Communications System (page 4-18)
nPARTNER Plus Communications System (page 4-18)
nSystem 25 (page 4-19)...

BCS Products
Security Handbook  
555-025-600  Issue 6
December 1997
Small Business Communications Systems 
Page 4-2  
4
—‘‘PARTNER II Communications System’’ on page 6-20
—‘‘PARTNER Plus Communications System’’ on page 6-20
—‘‘System25’’ on page 6-21 

BCS Products
Security Handbook  
555-025-600  Issue 6
December 1997
Small Business Communications Systems 
Page 4-3 Features for the MERLIN Systems 
4
Features for the MERLIN Systems
The following table indicates MERLIN II and MERLIN LEGEND security features 
by release number.
Table 4-1. MERLIN II and MERLIN LEGEND Security Features
FeaturesMII
 R3ML 
R1.0/
 1.1ML 
R2.0/
 2.1ML 
R3.0/
3.1ML 
R4.0/
 4.1/ 
4.2ML 
R5.0 Comments
Automatic Route 
Selection (ARS)xxxxxx
Administration 
Securityx x x x x...

BCS Products
Security Handbook  
555-025-600  Issue 6
December 1997
Small Business Communications Systems 
Page 4-4 Features for the MERLIN Systems 
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Night Service x x x x x Whenever Night 
Service is on and 
Shared Remote 
Access is 
administered, calls 
normally routed to 
internal stations are 
provided remote access 
treatment.
Reliable/Un-reliab
le Disconnectxxxxxx“Un-reliable” setting 
allows the user to dial 
without system 
screening if the far end 
disconnects.
Remote Access x x x x x Access...

BCS Products
Security Handbook  
555-025-600  Issue 6
December 1997
Small Business Communications Systems 
Page 4-5 Features for the MERLIN Systems 
4
Station 
Restrictionsx x x x x x Outward, toll, and 
unrestricted
Transfer to 
Scriber Onlyx x x x x Related to mail system 
in use
Trunk-to-Trunk 
Transferx x x x x Cannot be deactivated.
For ML R3.1 and later 
releases, trunk-to-trunk 
transfer can be blocked 
for an extension.
Table 4-1. MERLIN II and MERLIN LEGEND Security Features — Continued...

BCS Products
Security Handbook  
555-025-600  Issue 6
December 1997
Small Business Communications Systems 
Page 4-6 MERLIN II Communications System 
4
MERLIN II Communications System
This section provides information on protecting the MERLIN II Communications 
System. 
Additional security measures are required to protect adjunct equipment.
nChapter 5 contains security measures to protect the attached voice 
messaging system. For general security measures, refer to ‘‘
Protecting 
Voice Messaging Systems’’...

BCS Products
Security Handbook  
555-025-600  Issue 6
December 1997
Small Business Communications Systems 
Page 4-7 MERLIN II Communications System 
4
To restrict DISA lines, do the following:
— With a BIS-34D Console:
1. Move the TP switch to P.
2. Press the conference button twice.
3. Press the message button.
4. Dial #325.
5. Dial 0 for Outward Restriction.
6. Press the message button again.
— With a MERLIN II Communications System display console:
1. From the administration menu, press these buttons:...

BCS Products
Security Handbook  
555-025-600  Issue 6
December 1997
Small Business Communications Systems 
Page 4-8 MERLIN LEGEND Communications System 
4
— Short holding times on one trunk group
— Calls to international locations not normal for your business
— Calls to suspicious destinations
— High numbers of “ineffective call attempts” indicating attempts at 
entering invalid barrier codes
— Numerous calls to the same number 
— Undefined account codes
MERLIN LEGEND Communications 
System
This section...

BCS Products
Security Handbook  
555-025-600  Issue 6
December 1997
Small Business Communications Systems 
Page 4-9 MERLIN LEGEND Communications System 
4
NOTE:
The ability to transfer internal calls to outside numbers cannot be 
blocked for an individual extension. However, Calling Restrictions or 
Disallowed Lists can be assigned to individual extensions to prevent 
outward or toll calls. Also, a call transfer to an outside destination is 
disconnected if the original call is on a trunk that does not...

BCS Products
Security Handbook  
555-025-600  Issue 6
December 1997
Small Business Communications Systems 
Page 4-10 MERLIN LEGEND Communications System 
4
do so exists. In any event, it is not advisable to give anyone access to 
network facilities or operators, or to dial a number at the request of the 
caller.
nAny time a call appears to be suspicious, call the Lucent Technologies BCS 
Fraud Intervention Center at 1 800 628-2888 (fraud intervention for 
System 25, PARTNER and MERLIN systems)....