Solwise Elite VoIP Gateway User’s Guide
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To track a specific module of the software, a user may set the spy key designating
that module and set its filtering level to 2 to display messages of significance levels
2 and higher for this module of software. Decreasing the filtering level increases
number of messages, since the trace uuility displays messages of less significance
too.
The following table describes major spy keys supported by the ITG.
Spy key
Description
ATPM
The
A
ddress
T
ranslation and
P
arsing
M
anager provides address
translation services based on a database of telephone numbers and of
corresponding destinations configured through the Network
Management Module.
CCU
The
C
ontrol and
C
oordination
U
nit enables the PSU to set up DSP
channels. In addition, the CCU controls the DSP for generating
supervisory tone.
CMGR
The
C
all
M
ana
g
e
r
is called by the PSU at each phase of call
establishment and release and at significant events during a call.
CPS
While the LSS handles state changes that are unique to a signaling
protocol. The
C
all
P
rocessing
S
tate handles functions that are
common across all line protocols.
DIM
All access to the DSP resources within the ITG software system are
made through the
D
SP
I
nterface
M
odule.
DSPA
The
DSP A
llocator is called by the CCU whenever a call is about to
be established to a telephony port.
HSMU
The
H
.323
S
witched
M
ode
U
nit provides the capability to set up
voice, fax, or data connections over the IP network.
LSS
The
L
ine
S
tate machines handles state changes for loop start FXS,
FXO, and E&M signaling protocol.
NMM
The Network Management Module handles the configuration of the
ITG.
PSU
The
P
rotocol
S
witching
U
nit provides the capability to interwork
between the H.323 switched mode unit and TCP/IP protocol stack.
RADH
The ITG software incorporates
RAD
Vision
H
.323 protocol for call
signaling and control.
SPU
The
S
ignaling
P
rotocol
U
nit controls the LSS and CPS for
facilitating telephony channel signaling.
TIU
The
T
elephony
I
nterface
U
nit detects changes in telephony
channels, for example, hook state. The TIU also supplies signals,
such as loop power denial, to each of the telephony channels, and
generates various ring cadences.
This section describes commands for managing the spy facility.
5.18.1 spy
[
key
] [
level
]
This command is for setting and displaying spy keys the ITG support and the current
filtering level for each key.
