[cisco-voip] Cisco VoIP and Security

[christophe]

Hi,

I'm building an achitecture composed of 10 hardphones, 1 call manager
4.1 and as gateway a Cisco 2811 connected to my telephony Operator.
My phone service is the most critical service in my company (our
calls are Confidential and must be always available) 

What kind of security should I implement ?
What are the risks of intrusion from the phone line in my network
through  the 2811 gateway, is there a sens to implement IOS FW on the
2811?

Thanks for your advice.

Chris


	

	
		
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