We are trying to determine if the Cisco 831 broadband based routers are SIP friendly. Basically we are using a bunch of Sipura 3000's as gateways to our centrex network and are going nuts with the typical one-way conversations and the like. Yes we are using consumer class routers and realize these units won't cut it. We are trying to decide if the 831's are sip friendly in regards to NAT transversal or should we be looking at a different router class, but with a broadband port which is a must.
Thanks for your time!