[cisco-voip] Slow to connect calls

[Jeff Ruttman]

Greetings,
 
I found the cause.  I think it was Wes who hit it with this:  "Another
cause is hunting through endpoints in a route list or route group which
are partially responsive."  We have 3 lines configured on that FXO card
in the router and CM.  In the route group using that gateway, by
switching the order of the devices listed there, one of them takes the
15 count to connect a call where the other 2 take only a 5 count.  
 
In a debug on the router, I can see the "slow" one actually fails and
passes the call to the next device in the route group list.
 
Also in the debug I see this line in reference to the "slow" port:
451545: Jul  7 09:22:34.324 CST: fxogs_line_reversal_clid_wait. On_hook
line reversal detected possibly due to crossed cable
 
So it appears to be a physical layer problem.  Turns out that office is
moving in a couple weeks, so hopefully I can avoid/fix this problem when
I wire up the new site.
 
Sooooo much to learn on this stuff!
 
Thanks
jeff
 

________________________________

From: Wes Schochet [mailto:Wes.Schochet at childrensmn.org] 
Sent: Monday, July 06, 2009 1:11 PM
To: Jeff Ruttman
Subject: Re: [cisco-voip] Slow to connect calls


Your dial string are probably matching multiple and/or overlapping route
patterns.  The system waits until the inter-digit timeout expires before
placing the call.  Try and clean up your patterns...
 
 
Wesley A. Schochet
System Architect
Children's of Minnesota
* wes.schochet at childrensmn.org
*  651-855-2081
* 651-592-5441


>>> On 6/25/2009 at 8:47 AM, in message
<07365C3161D8D8419EE51C3834C02205B84D50 at ma1-exc01.ec2802.elderc.org>,
"Jeff Ruttman" <ruttmanj at carewisc.org> wrote:

Greetings,
 
Some of our sites have DID trunk ports and POTS lines, and we have MGCP
controlled GWs with FXS and FXO configured.  We also have for these
sites H.323 GWs--which frankly I'm not sure why or what they do.
 
Anyway, at one of those sites, it takes a count of 15 or more for an
outgoing call to connect.  I know some delay is expected with that
setup, but that's quite a bit longer than at our comparable sites.
 
Is that length of delay still within expectations?  Or is there
something perhaps I can do to speed that up?
 
Thanks
jeff
 
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