| Jordan Blocks VoIP Calls at L7 Jordan Telecom has upgraded its co-location network and started using Cisco 6500 multi-layer switches with content filtering modules and L7 application filtering. They started blocking all VoIP calls. This includes Net2Phone, Vonage, Dialpad, and even yahoo messenger voice...
All the ports used by VoIP traffic for signaling, setting the call, and running the call are open. Non is blocked. The blockage happens at layer 7 by inspecting each packet and applying the blockage policies on them.
During my search I found what is called Internet Telephony Proxy like:
»somebody.net/membership-types.html
I do not know if these proxies work, and if they do, I am wondering if we can find free Internet Telephony proxies. Also, how can we make them work with units like the Cisco ATA 186, and IP phones?
Any suggestions to overcome this problem. I think establishing VPN tunnels with the VoIP providers is a solution. But I am looking for simpler solutions that work with any VoIP providers.
Mohammed Elayyan
mohd_elayyan@yahoo.com |
