[cisco-voip] 1760, FXS port (MGCP) and Valcom V-9970, V-9924C

[Erick Bergquist]

I haven't seen the actual issue myself yet, live.
Waiting for them to report the next time it happens
and hopefully let me know so I can jump in there and
see. I asked they do a bunch of captures of show voice
commands, etc and some debugs to syslog server.

Asked they try a shut/no shut of port before trying
the  no mgcp/mgcp trick and see if it clears it up.


--- pnowicki at neo.rr.com wrote:

> That should be pretty much a no-brainer, so
> something else is going 
> on. By any chance, are you using another port on the
> FXS card? And if 
> so, does that port experience any of the same
> issues? I'm just trying 
> to rule out a hardware issue with the card. The only
> other thing that 
> I can think of is that the disconnect supervision
> gets lost and the 
> Valcom remains off-hook and locks up the port..
> There is a fall-back 
> from the loop current drop method, which is "maximum
> page length" If 
> that is not enabled, you could try that to make sure
> that after, lets 
> say, 32 seconds or so the page drops the port no
> matter what. 
> 
> One other thing to check, does doing a "shut / no
> shut" on the voice 
> port clear anything up? Like you mentioned, the
> reseting the MGCP 
> process fixes it too. Maybe there is an issue on the
> MGCP side locking 
> up the port. What state is it in when it locks up
> (IDLE?, IN USE?)
> 
> Anyway, hope this helps..
> 
> Patrick
> 
> ----- Original Message -----
> From: Erick Bergquist <erickbe at yahoo.com>
> Date: Monday, August 29, 2005 12:59 pm
> Subject: [cisco-voip] 1760, FXS port (MGCP) and
> Valcom V-9970, V-9924C
> 
> > Having issue with client where the Valcom paging
> stops
> > working periodically and they need reboot router
> or
> > bounce MGCP to clear things up. 
> > 
> > The voice-port is default settings, and IOS is
> > 12.4(3). They upgraded from 12.3(8)T3 and had same
> > problem with that also. 
> > 
> > voice-port 0/1
> >  timing hookflash-out 50
> > 
> > Not realy familiar with the Valcom stuff, but seen
> > previous discussions on valcom on the list. Any
> > tricks/gotchas with these model valcoms connecting
> to
> > FXS ports on voice gateways?
> > 
> > 
> > 
> > 
> >        	
> >
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