The problem is the design of L2TP/IPsec. Details here. No way to solve this at the 3011 end unless you could use as many public IPs at WAN side as there are phones. It might be possible to solve it at the phones themselves but it is not very likely.
The problem is the design of L2TP/IPsec. Details here. No way to solve this at the 3011 end unless you could use as many public IPs at WAN side as there are phones. It might be possible to solve it at the phones themselves but it is not very likely.