Patton electronic SmartNode 4110 Series Debugging voice data, No debug media-gate, Way dejitter

SmartWare Software Configuration Guide			52 • VoIP debugging
presentation allowed - user provided not screened
19:17:44	ICC	> [TERMINAL-00df2760] State: CALL RECEIVED, Event: TERMINAL CONNECT
IND
19:17:44	ICC	> [TERMINAL-00df2760] Set state to ACTIVE
19:17:44	ICC	> [TERMINAL-00df2760] >> CONNECT ACKNOWLEDGEMENT (DSS1 Ntwk)

unit(cfg)# unit(cfg)#call 55 drop

unit(cfg)#19:19:29 ICC > [TERMINAL-00df2760] State: ACTIVE, Event: PEER RELEASED

19:19:29	ICC	>	[TERMINAL-00df2760]	Set state to DISCONNECT INDICATION
19:19:29	ICC	>	[TERMINAL-00df2760]	>> DISCONNECT (DSS1 Ntwk)

Cause : normal call clearing

private network serving local user - CCITT - Q.931 Progress indicator : inband information available

private network serving local user - CCIT

Explanation:

•unit(cfg)#call 55 dial 50 dest-interface TERMINAL: Dial the number 50, which calling-party 55 to

the interface TERMINAL. If a phone connected to the port that binds to interface TERMINAL has MSN 50 configured, it will start to ring. This is the case in our example.

•You just have verified that ISDN layer1–3 and the context CS interface TERMINAL are configured so that a call with called-party 50 can be handled. If this is not the case (no response or a RELEASE message), con- tinue debugging ISDN signaling.

•unit(cfg)#call 55 drop: Drops the call initiated with the dial command.

You can proceed as in this example with any other context CS interface, also for VoIP protocols like SIP and H.323.

Debugging voice data

There are several debug monitors that can help identify problems in VoIP connections. The most common VoIP problems are: voice quality problems (dropouts), fax transmission errors, no establishment of voice con- nection, and wrong tone or playback. Dependent on the SmartNode devices, the output of the different Media Gateway monitors can differ.

An overview of all available Media Gateway debug monitors is given below. Some more specific examples for debugging cases follow after that.

Overview: Media Gateway debug monitors

[no] debug media-gate-	Displays changes to the settings of the dejitter buffer, exceptions (under-
way dejitter	run, overrun, packet drops) and size changes.
	Usage: To investigate problems related to voice quality, voice packet
	payload sizes, delays, jitter
[no] debug media-gate-	Displays control activities on the Data Path (path of voice/fax data
way control [detail level]	packets within your unit): State changes, tone start/stop, DTMF play-
	back/detection, fax/modem detection.
	Usage: To investigate problems with voice connections, DTMF, tone
	playback, fax and modem transmissions.

Debugging voice data 640