Expansion Stages and System Capacity
Parameter Explanation
Reserved for call recording Number of audio channels on this node that can
be used exclusively for call recording.
Reserved for announcements Number of audio channels on this node that can
be used exclusively with audio file.
Non-reserved/shared Number of audio channels on this node which
can be used by voice mail, auto attendant,
queue with announcement, call recording,
announcement with audio file or conference
bridge, depending on how they are needed at that
time. Announcement service and music on hold
use their own resources.
No audio channels are reserved after a first start and they can be used for voice mail, auto attendant, call
recording or announcement.
Configuration of DSP chips
The functions which can be allocated to each DSP chip are determined in the Media resources view. The
DSP modules provide additional functions as indicated in the following table. All the possible combinations
are listed, with the maximum number of channels.
Table 19: Max. number of channels per DSP chip on SM-DSPX1 or SM-DSPX2
DECT VoIP FoIP Audio GSM
CAS
6
Remarks
8 2
8 8
6 4
6 2 8
4 8
6
Of relevance only to certain countries such as Brazil
Release 7.1
51 System Manual for Mitel SMB Controller