Netlink Dsp Zones - NEC UNIVERGE SV9100 Manual

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the transmitted data.
c) DTMF digits are always sent immediately by adding dummy data to ensure the packet size
exceeds the MSS.
2.6.1.2

NetLink DSP Zones

Netlink DSP Zones
Description
A DSP provides format conversion from circuit switched networks (TDM) to packet switched networks (IP).
Each voice channel from the circuit switched network is compressed and packetised for transmission over
the packet network. In the reverse direction, each packet is buffered for de-jittering, decompressed, and
sent to the circuit switched network. Each DSP converts a single speech channel from IP to TDM and vice
versa.
A DSP is used on the system GCD-CP10 which has the call. For instance, when a trunk on
System ID 2 uses a receiver, a DSP on System ID 2 is used.
The Primary System must control DSP resources on the Secondary Systems but it cannot control
all of them.
There are five zones to handle DSP resources in NetLink. The zone number depends on the
System ID number.
In the same Zone, the communication servers must share the DSP resource number.
For instance, if a user in System ID 1 is using DSP resource 1, resource 1 becomes busy in Zone
1 (System ID 1, 6, 11, 16, 21, 26, 31, 36, 41 and 46).
Zone
1
2
3
4
5
All nodes in the NetLink network follow the DSP Setting in Program 10-19 of the Primary System.
1 6 11
2 7 12
3 8 13
4 9 14
5 10 15
System ID
16 21 26
17 22 27
18 23 28
19 24 29
20 25 30
31 36 41
32 37 42
33 38 43
34 39 44
35 40 45
46
47
48
49
50