[Freeswitch-users] How to tie context to a gateway?

Hi all, I have several gateways in the external profile. Let's say GW1 and GW2. I'd like to process calls from the GW1 in the context C1 and calls from GW2 in the context C2. Parameter "context", as far as I understand works for the whole profile, not for individual gateways in the profile. How do send calls from GW1 into context C1? What will be a good practice to do that? Thanks in advance, Nikolay.