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Figure 12
Block diagram of MPDA and Meridian Modular Telephone
Local alerting tones
Chapter 7 — Meridian Modular Telephones
Each telephone provides four alerting tones and a buzz sound. The system
controls the ringing cadence by sending tone-ON and tone-OFF messages to
the telephone. The alerting tone cadences cannot be changed from the
telephone, but can be altered for individual Meridian Modular Telephones by
software controlled adjustments.
Alerting tone characteristics
The tone frequency combinations are given in
Meridian 1 Option 11C Compact
Page 69 of 136
Table
27:
Technical Reference Guide
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