Webdialer and NAT

Tim Lambrecht · ‎09-28-2009

Hi,

We have a voice network that is completely separate of the data network (due to some security restrictions). Both networks are connected to the internet. We have a CUCM v6.1.3a.

I wonder if it is possible to use Webdialer/Click2Call widget on desktops in the data network. The voice network has a firewall that can do Network Address Translation.

Is Webdialer through NAT possible, and if so, which port(s) do we have to open?

Thanks,

Tim

gogasca · ‎09-28-2009

why you need to do NAT between data and voice?

I will use VPN

NAT may have some issues with CTI

Tim Lambrecht · ‎10-14-2009

The telephony network is completely separated from the office (data) network due to historical reasons. The telephony network has a low-cost firewall that allows NAT/PAT, and that is the only way we can have webdialer requests coming in from PCs in the office network. VPN is not possible between the two networks.

Anyhow, I expected some issues with NAT so it was worth a try.

Thanks

kelvin.blair · ‎10-14-2009

NAT will definitely cause issues with this setup. If security is an issue, then why not use CTL files to encrypt phone traffic and use IPSEC to the gateway. Just a thought to get around your issue so that you can get the features you are looking for...