Media Resources - Mitel MiVoice Office 400 System Manual

Expansion Stages and System Capacity
3.2.3

Media resources

Media resources are used for complex signal processing functions, and made available by DSP chips.
(DSP stands for Digital Signal Processor). They provide functions for conference circuits, DTMF sender
and receiver, compression of voice data, etc. A DSP chip is fitted permanently to the mainboard.
Part of these media resources is allocated to fixed functions and can be used without licences (see
Fixed functions of the mainboard
requirements. These functions are partly subject to licence (see
DSP).
The basic resources of the communication server can be expanded by fitting DSP modules . The functions
of the DSP chips on the modules can also be configured (see
SM-DSPX1 or SM-DSPX2
Fixed functions of the mainboard DSP
The table below provides an overview of the fixed functions of the mainboard DSP. No licences or
additional hardware is required to use the functions.
Table 13: Fixed functions of the mainboard DSP
Max. number of simultaneous ...
Total circuits for three-party to six-party conference
Call waiting circuits
Intrusion and silent intrusion circuits
DTMF receiver for voice mail, auto attendant or analogue terminals
Dialling tone receiver
Busy tone receiver
Ring signal receiver
FSK receiver for CLIP detection on analogue network interfaces
FSK transmitter for CLIP display on analogue terminals
43
DSP). Another part is allocated to selectable functions, according to
and Mitel 6900 SIP series SIP
Selectable functions of the mainboard
Max. number of channels per DSP chip on
phones).
SMBC
10
3
4
10
4
4
2
2
2
System Manual for Mitel SMB Controller
Release 7.1