[cisco-voip] VoIP over Hardware VPN

Craig Staffin craig at staffin.org
Thu May 28 20:11:38 EDT 2009


Jim,

Keep in mind that the RTP traffic does not flow from phone to CUCM to
phone.  So you would actually need to make sure you can ping the phone from
your hours and vise versa.

Craig


On Thu, May 28, 2009 at 7:05 PM, Jim Reed <jreed at swiftnews.com> wrote:

>  *Okay, hate to be a pain but the phone is registered and when I call one
> of our main locations and enter the extension the phone rings at my house
> but am getting no voice on my end.  Seeing tx traffic on the phone
> statistics but no rx traffic.  Any thoughts?  Routing all seems to be in
> place.  I can ping the phone from the Call Manager and can ping the Call
> Manager from my home.  Have the phone in the same calling search space,
> location, etc., as the Call Manager it’s registering to.  It’s showing a
> g711 codec.
>
> Thanks in advance for any advice...
> *--
> Jim Reed
> Technology Wrangler
> Swift Communications, Inc.
> 970-683-5646 (Direct)
> 970-683-5650 (Fax)
>
>
> On 5/28/09 3:48 PM, "Wes Sisk" <wsisk at cisco.com> wrote:
>
> It depends on your setup.  If you are doing address translation then you
> must have it enabled.
>
> If you are not doing address translation and do not dynamic port allocation
> (basically if you have permit ip any any) then you need to have it disabled.
>
> So, engineer's favorite answer - it depends.
>
> /Wes
>
> On Thursday, May 28, 2009 3:56:48 PM, Jim Reed <*jreed at swiftnews.com*> <*
> mailto:jreed at swiftnews.com <jreed at swiftnews.com>*>  wrote:
>
> Re: [cisco-voip] VoIP over Hardware VPN *Thanks, Lelio.
> Are you referring to turning it on or turning it off!
>  *--
> Jim Reed
> Swift Communications, Inc.
> 970-683-5646 (Direct)
> 775-772-7666 (Cell)
>
>
>
> On 5/28/09 1:55 PM, "Lelio Fulgenzi" <*lelio at uoguelph.ca*> <*
> mailto:lelio at uoguelph.ca <lelio at uoguelph.ca>*>  wrote:
>
>
>
> I think the biggest thing is "sccp fixup"....
>
> ---
> Lelio Fulgenzi, B.A.
> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> "Bad grammar makes me [sic]" - Tshirt
>
>
> ----- Original Message -----
> From: "Jim Reed" <*jreed at swiftnews.com*> <*mailto:jreed at swiftnews.com<jreed at swiftnews.com>
> *>
> To: *cisco-voip at puck.nether.net*, *ask-icd-ivr-support at external.cisco.com
> *Sent: Thursday, May 28, 2009 3:44:45 PM GMT -05:00 US/Canada Eastern
> Subject: [cisco-voip] VoIP over Hardware VPN
>
> VoIP over Hardware VPN *Anyone have any hints, tips, suggestions,
> comments, concerns, etc., regarding running a single IP phone over a
> hardware-to-hardware VPN.  I've tried it in the past but could only seem to
> get voice going in one direction.  It's been a while and I'm going to give
> it another shot.  Will be working with ASA 5505 on one and ASA 5510 on the
> other.  Call Manager 4.x.  Probably a 7940 or 7960 phone.  Internet
> connections are 15-Meg-Over-Ethernet on one end and 10-Meg-Over-Ethernet on
> the other.  Current ping times between devices on the two ends are
> consistently very fast -- less than 100ms over extended ping tests.
>
> Any advice, anecdotal wisdom, personal experience, etc., that anyone has
> had in trying to do this is sincerely welcome and appreciated.
>
> Thank You...
>
> *
>
>
>
>
>
>
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