System Requirements For Touch-Tone Receivers - Lucent Technologies MERLIN LEGEND Release 6.0 System Planning Manual

MERLIN LEGEND Communications System Release 6.0
System Planning 555-660-112
2 Control Unit Configuration
Numbering the System
Table 2-4.
Calls/Hour
110
180
350
420
610
710
To calculate the total number of TTRs that are required by the system, do the
following:
1. If the system has a VMS, use Table 2–3 to find the number of TTRs
required by the system to support the VMS. If the system does not have a
VMS, then proceed to Step 2.
2. Estimate the hourly call volume for all calls originating from single-line
telephones, incoming calls on Remote Access, DID lines, T1 lines, and
calls on tie lines. Use Table 2–4 to find the system requirements for TTRs
based on the estimated hourly call volume.
3. If you are using the DGC Prompt Based Overflow feature, each Delay
Announcement Unit (DAU) that is physically attached to the calling group
will have one TTR allocated while the announcement unit is playing the
message.
4. Add the number of TTRs calculated in each of the three steps above to
determine the total number of TTRs required for the system.
Jack for Primary Operator Position
The factory setting for the primary operator position is the lowest extension jack
on the first MLX or analog multiline telephone module. You cannot change the
factory setting for the primary operator position.
The primary operator position uses two types of operator consoles:
Direct-Line Console (DLC). Can be assigned to either a digital or analog
extension jack.
Queued Call Console (QCC). Can be assigned only to a digital extension
jack, and the MLX-20L is the only telephone that can be used as a QCC.
If the system includes QCCs, the primary operator position must be a QCC.

System Requirements for Touch-Tone Receivers

No Account Account Codes
Codes Used
2
4
4
6
6
8
4
6
8
8
10
10
2
Issue 1
February 1998
Page 2-18