Expansion Stages and System Capacity
48
Aastra 415/430 as of R3.2
syd-0344/1.6 – R3.2 – 09.2014
No voice channels are reserved after a first start and they can be used for voice
mail, auto attendant or call recording.
Voice-mail system modes of operation
The voice-mail system mode of operation is set in the DSP configuration (
=ym
)
using the
Voice mail mode
parameter. The configured mode is always valid for the
entire node.
Tab. 21
Voice-mail system modes of operation
Configuration of DSP chips
The functions which can be allocated to each DSP chip are determined in the DSP
configuration (
=ym
). The DSP modules provide additional functions as indicated
in the following table. All the possible combinations are listed, with the maximum
number of voice channels.
Reserved for Auto-Attendant
Number of audio channels on this node that can be used
exclusively for auto attendant.
Reserved for call recording
1)
Number of audio channels on this node that can be used
exclusively for call recording.
Non-reserved/shared
Number of audio channels on this node that can be used
for voice mail, auto attendant or call recording, depend-
ing on where they happen to be required.
1)
Note for
Voice mail mode
=
Expanded (G.729 only)
: For each audio channel reserved for call recording, the
number of possible audio channels reserved for voice mail is reduced by 3. The possible combinations of
voice mail/call recoding are as follows: 12/0, 9/1 and 6/2.
Voice mail mode
Explanation
Licences
Normal (G.711 or G.729)
The
Normal (G.711 or G.729)
hybrid
mode handles both audio formats
while the number of voice channels
per node is restricted to 4.
Two voice mail channels are available
with the
Enterprise Voice Mail
licence.
Each additional voice mail channel
requires an additional
Audio Record &
Play Channels
licence.
Expanded (G.729 only)
In
Expanded (G.729)
mode there are
more voice channels available per
node than in hybrid mode. However
the quality of the audio data is some-
what poorer as a result of the compres-
sion.
Two voice mail channels are available
with the
Enterprise Voice Mail
licence.
Each additional voice mail channel
requires an additional
Audio Record &
Play Channels
licence.
Parameter
Explanation