[cisco-voip] Callmanager implementation over Internet

[Robert Hugo]

I have done this with a simple PIX site-to-site tunnel and, yes, the CCM /
Unity DOES support NATing.  If your scenario is more than a handful of
remote users, like this site was, I would go with the Proxy setup as Matt
described.  However, if you have a simple setup and want to go the
site-to-site tunnel route, email me offline and I can send you some
reference configs of the PIXs' and VOIP GWs.

On 8/18/06, Manoj Kalpage <manoj.kalpage at gmail.com> wrote:
>
>  Hi Matt,
> Thank you for your reply. If I do this with PIX, I guess I have to do
> natting. I am just wondering whether CCM and Unity does support for natting?
> Also, what is your recommendation for SCCP Proxy?
>
> Best Regards,
>  Manoj
>
>
> ----- Original Message -----
> *From:* Matt Slaga (US) <Matt.Slaga at us.didata.com>
> *To:* Manoj Kalpage <manoj.kalpage at gmail.com> ; cisco-voip at puck.nether.net
> *Sent:* Friday, August 18, 2006 9:15 PM
> *Subject:* RE: [cisco-voip] Callmanager implementation over Internet
>
>
>
> You can use the SCCP proxy by Metreos to accomplish this and still remain
> secure.
>
>
>
> I have implemented a callmanager/unity directly on the internet in the
> past for a company in your same situation.  Their server had more worms in
> viruses in 1 week than I've seen in my whole life (even with CSA & AV, they
> were able to take control of the server through a buffer overflow we think
> and disabled these services).  Perhaps CCM5 would be better suited for this
> purpose, or you could use your pix to only allow the necessary ports.
>
>
>
>
>
>
>  ------------------------------
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Manoj Kalpage
> *Sent:* Friday, August 18, 2006 4:23 AM
> *To:* cisco-voip at puck.nether.net
> *Subject:* [cisco-voip] Callmanager implementation over Internet
>
>
>
> Hi All,
> We have Call Manager and Unity hosted in Data Centre. All our clients have
> VPN connection to Data Centre. I am using PIX 515 at Data Centre and PIX501
> at clients side. All are working perfect except voice quality issue some
> times. Since this is PBXL hosting service and security is not that much
> concern, I am wondering I can setup phones to acess CCM and Unity over the
> internet using gloabl IP address on Cisco IP Phones. Has anyone every
> implemented CallManager and Unity over internet? Your comment and advice
> would be greatly appreciated.
>
> Best regards,
> Manoj
>
> ------------------------------
>
>
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-- 
Robert Hugo
Senior Voice Network Engineer
World Wide Technologies
60 Weldon Parkway
St. Louis, MO, 63043
1-314-409-6527
Cell:1-217-520-3261
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