Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Instructions Manual

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1327 Distinctive Ringing 
20
Distinctive Ringing
Distinctive Ringing provides several ringing cycles to help telephone users and 
attendants distinguish between incoming call types. Administer Distinctive 
Audible Alerting on Feature-Related System Parameters for internal, external, 
priority, and attendant originated calls. 
If the phone is a single-line analog, you have to set this on the...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1328 DS1 Trunk Service 
20
DS1 Trunk Service
Digital Signal Level 1 (DS1) trunk service uses bit-oriented signaling (BOS) and 
multiplexes 24 channels (T1 service) or 32 channels (E1 service) into a single data 
stream. DS1 can be used for voice or voice-grade data and for data-transmission 
protocols. T1 trunk service multiplexes 24 channels into a single 1.544-Mbps data 
stream. E1 trunk...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1329 DS1 Trunk Service 
20
 DS1 operational and signaling parameters
The table below provides the recommended combination of parameters for each 
DS1 interface.
DS1 
Circuit 
Packs # Trunk 
MembersBit Rate 
Mbps CompandingSignaling 
Mode Trunk Type
1
TN722 1-23 1.544 mulaw common-chan Tie, 
DMI-BOS, 
CO
2
1-24 robbed-bit Tie
TN722B 1-23 1.544 mulaw common-chan Tie, 
DMI-BOS, 
CO
2
1-24...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1330 DS1 Trunk Service 
20
Signaling modes
Common-channel signaling (CCS) is an industry-standard technique where any 
one of a group of channels carries the signals for the other channels. Lucent 
Technologies uses the 24th channel of a group for signaling. This signaling 
technique differs from 24-channel signaling. When the system is configured for 
Facility-Associated Signaling,...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1331 DS1 Trunk Service 
20
Channel Associated Signaling (CAS) is similar to common-channel signaling and 
is used only when the Bit Rate is 2.048 Mbps (the trunk is used with an E1 
interface). Signaling is carried on the 16th channel.
Common-channel signaling and channel associated signaling provide a maximum 
transmission rate of 64 Kbps for bearer channels.
Robbed-bit signaling is a...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1332 DS1 Trunk Service 
20
8 Belgium ETS 300 102 Restart
9 Saudi Arabia ETS 300 102 Restart
10 - a United 
KingdomETS 300 102 (for connection to DASS 
II/DPNSS through external converter)Restart
10 - b United 
Kingdom, 
IrelandETS 300 102 (Mercury); British Telecom 
ISDN 30; Telecom Eireann SWD 109none
11 Spain Telefonica ISDN Specification Restart
12 - a France  VN4 (French National PRI)...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1333 Emergency Access to the Attendant 
20
Emergency Access to the Attendant
Emergency Access to the Attendant alerts an attendant if a telephone remains 
off-hook for more than the administered period of time. It also enables a user to 
place an emergency call to an attendant.
Detailed description
Emergency calls can be placed automatically by the system or dialed by system 
users. Such...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1334 Emergency Access to the Attendant 
20
nTime of the call 
nThe following known call results:
— Call Completed — Call answered at attendant or listed directory 
number (LDN) night extension.
— Queue Full — Emergency-access queue is full; tries to redirect the 
call to an emergency-access redirection extension.
— No Attd — No active attendants are available to receive the call; 
tries to...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1335 Emergency Access to the Attendant 
20
Interactions
nCentralized Attendant Service
For a branch with CAS in effect, an emergency call reroutes to the branch 
attendant group. If the branch does not have an attendant or if the branch is 
not in CAS Backup Service, the call is denied.
If the branch PBX is in CAS Backup Service, an emergency call routes to 
the backup position and is...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Features and technical reference 
1336 Emergency Transfer 
20
Related screens 
nClass of Service (Off-Hook Alert)
nConsole Parameters
— Queue Priorities 
nFeature-Related System Parameters
— Reserved Slots for Attendant Priority Queue
— Time before Off-Hook Alert
— Emergency Access Redirection Extension
nHospitality 
— Extension of Journal/Schedule Printer
— Time of Scheduled Emergency Access Summary Report
nAttendant...