Instruction manual

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
555-650-140
Issue 1
June 1997
Telephone Problems
Page 3-11
System Requirements for Touch-Tone Receivers
Table 3-4 estimates the total number of TTRs required in the system, based on
call volume and whether the system uses account codes. The call volume in this
table includes all calls originating from single-line telephones, calls on tie lines,
incoming remote access and DID calls, and calls routed to the voice messaging
system.
The following modules supply TTRs for the MERLIN LEGEND Communications
System.
Table 3-4. System Requirement for TTRs
Calls/Hour No Account Codes Used Account Codes Used
110 2 4
180 4 4
350 4 4
420 6 8
610 6 6
710 8 8
Table 3-5. Modules with TTRs
Module
No. of TTRs
008 OPT
2
012
2
016
4
400 GS/LS
4
400
4
800 DID
2
800 LS-ID
2