[App_rpt-users] drop outs and ping pong

[hwstar at rodgers.sdcoxmail.com]

> 
> From: Ken <ke2n at cs.com>
> Date: 2010/01/07 Thu PM 02:49:09 PST
> To: app_rpt-users at qrvc.com
> Subject: [App_rpt-users] drop outs and ping pong
> 
> Today I added a second node to my system and had my first 
> inter-asterisk QSO. I found two problems which may, or may not, be 
> related.
> 
> first issue:
> 
> During the QSO, there were a lot of drop outs (both ways apparently). 
> These were accompanied by "Hungup..." messages on the console. I think 
> these are not anything to do with audio or USB, but rather with the 
> internet (parrot mode works fine, for example). I wonder what other 
> people's experience is with this? Could it be something my ISP is doing 
> to me (they are famous for this kind of thing).
> 
> This happens in monitor-only mode too, and apparently it is noticeable 
> on the other and as at some point when I was doing this a control 
> operator came on and said my node was 'coughing' and then proceeded to 
> disconnect me from his end.  I hate to think I am screwing up other 
> peoples systems by just listening to them. What to do? I noticed that 
> there is a "drop count" parameter in IAX
> 
> [from this I concluded that the inter-asterisk exchange protocol must 
> have some end to end acknowleements ?]
> 
> second issue:
> 
> when I connect my first node to my second node on the same machine I 
> get a ping-pong effect (or similar) where the first node keeps playing 
> the courtesy tone (and PTT remains on continuously) and the second node 
> drops the PTT but immediately keys up again. No received audio passes 
> from node 1 to node 2 while all this beeping is going on.
> 
> I have commented off the CTCSS commands for node 2 and courtesy tones 
> as well.
> 
> I expect this is something stupid I have done that should be easy to 
> fix.
> 
> Thanks,
> Ken
> 27021
> 27061
> 
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If these are both simplex nodes and you are running app_rpt version 2.10, try adding rxondelay=25 in /etc/asterisk/usbradio.conf on both nodes. Be sure to restart asterisk on both machines after making this change.

The other problem is most likely Internet related.

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Steve
WA6ZFT