Dsp Resource Usage - Panasonic KX-NS700 Feature Manual

Service
VoIP call (G.711)
Unified Messaging
Two-way recording
OGM
Conference CO line
Unified Messaging tone
Minimum performance refers to the minimum number of simultaneous operations.
*1
Unified Messaging operations include operations such as users (subscribers) accessing their mailboxes and outside callers
*2
leaving messages in subscribers' mailboxes.
DSP is used when DSP Conference Priority is set to Preferential.
*3
The resources for Unified Messaging tones (used for Two-way Recording) are reserved automatically and cannot be released.
*4
Free Resources = DSP capacity – Total Reserved Resources, rounded to the nearest whole number.
*5
If the PBX's resources are reserved as shown in the example above, the resources required to meet the
numbers of operations listed in the "Minimum performance" column are guaranteed to be available. Note,
however, that for an operation such as a conference call, DSP resources are required for each individual
conference party in addition to the resources required for the conference CO line itself. Therefore, if all 40
VoIP units as well as all free resources are being used, a new conference call cannot be established, even if
sufficient conference resources are available.
Conditions
•
The total number of resources provided by each type of DSP card is as follows:
–
DSP S card: 63
–
DSP M card: 127
–
DSP L card: 254
PC Programming Manual References
9.2.2 PBX Configuration—[1-1] Configuration—Slot—System Property—Site—DSP Conference—DSP
Conference Priority
9.33 PBX Configuration—[1-5] Configuration—DSP Resource

5.1.18 DSP Resource Usage

Description
To digitally process audio signals, such as a telephone call, the PBX must use a certain number of DSP
(Digital Signal Processing) resources. DSP resources are provided by the DSP card installed in the PBX.
Since there are a limited number of DSP resources, no further operations (e.g., telephone calls, playing an
OGM) can be performed if all resources are being used.
The following list shows some of the basic operations that require DSP resources.
•
IP extension call
•
IP CO line call
•
Conference
Document Version 2017-06
Minimum
performance
40 calls
5 operations
*2
3 recordings
10 playbacks
10 conferences
*3
2 tones
*4
Resources per unit of
performance
*1
1
1.3
2.3
2
0.5
1
Total Reserved Resources
Free Resources
5.1.18 DSP Resource Usage
No. of required DSP
resources
40
6.5
6.9
20
5
2
80.4
47
*5
Feature Manual 113