Patton electronics SmartWare R.3.20 Software Configuration Manual page 550

SmartWare Software Configuration Guide
debug dsp t30
debug dsp ifp
Depending on the type of problem, some debug monitors are more useful than others. Try to avoid enabling all
monitors at the same time, as this generates a lot of output and can degrade system performance. The follow-
ing examples show some typical debug cases and what monitors should be switched on in these cases.
Example: Debugging voice connections
Symptoms: Voice quality is bad (dropouts), the voice connection is only established in one direction or not at
all, there is only noise instead of voice, no tones are played (e.g. dialtone).
Prerequisite: The call is established from a signaling point of view (see chapters Debug H.323 Data and Debug
Session Control Data).
Use the following debug monitors to start with:
Step
1 unit #debug voip events
2 unit #debug dsp error
3 unit #debug voip rtp
Depending on the type of problem, continue using one or more of the following monitors:
unit #debug dsp events
unit #debug voip dejitter
unit #debug voip rtp
unit #debug voip cs
Example: Debugging Fax connections
Symptoms: Fax transmission starts but is interrupted and the Fax machines terminate with an error message,
Fax transmission does not start at all, the unit's firmware does not detect Fax.
Prerequisite: Fax transmission is configured for T.38 relay in the voip profile. The call is established from a sig-
naling point of view (see section
Attention: Special signaling procedures are used for the transition between voice and fax data transmission. It
may be that the initial call setup is correct, but that the signaling to T.38 over H.323 is faulty. The session-con-
trol and H.323 signaling monitors (see Debug Session Control Data, and Debug H.323 Data) might also be
helpful to identify these cases.
Debugging voice data
Traces the flow of T.30 communication states between the fax machines
(for T.38 Fax transmission only), and logs changes. Gives approx.
10lines of debug output per transmitted fax page.
Usage: To debug all T.38 Fax related problems.
Decodes the IFP (Internet Fax Protocol) elements within T.38 packets.
More detailed decoding than T.30 monitor, but can generate a lot of
output.
usage: To debug Fax related problems.
Command
Command
"Debugging voice data"
Enable the voip events monitor.
Enable the DSP error monitor.
Enable the RTP debug monitor
Purpose
Enable the DSP events monitor.
Enable the dejitter buffer monitor.
Enable the RTP debug monitor
Enable the CS debug monitor
on page 549).
42 • VoIP debugging
Purpose
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