- We can configure a Dynamic NAT for only one public IP address and it will be the same as a static NAT but it won't allow traffic flow from Outside to Inside.   - Static NAT does takes place before the PAT and Dynamic NAT.   - This is how generall...

you can use:CISCO891-K9_1(config)#ip nat service  sip udp ?  port  Special non-standard portCISCO891-K9_1(config)#ip nat service  sip udp port ?  <1-65535>  Port numberCISCO891-K9_1(config)#ip nat service  sip udp port  5070CISCO891-K9_1(config)#