[Serusers] route based on src IP address?

[Juan Priotti]

I have a simple question:

Is it possible to route a sip call based on source IP address? For 
example, if a call if originated from UA1 I would need the call to be 
routed to gateway1 but if the call was originated on UA2, gateway2 
should be used (UA1 has different IP address than UA2). If possible, 
which is the config I need to use in ser.cfg?

Thanks in advance

Juan