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

[pnowicki at neo.rr.com]

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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