NAT : How to map destination port based on source address?

Is is possible to map a destination port address based on source address and port number?

For example, when a sip packet (udp 5060) comes from a known voip service provider, is it possible to change the destination port address before forwarding on to the sip client behind a Cisco router?

If possible, I would appreciate if some one can elaborate on the config.

Many thanks.