[Serusers] Accounting Calls not by extension

[Nhadie Ramos]

Hi All,

I'm doing accounting via the usage of per extension. Can i also do it 
when a client is a gateway and would forward calls to my SER?
e.g. from their gateway, the will append everything infront of their 
dialled digits with 12345#, then forward it to my SER. then i'll strip 
the 12345# then forward it to my gateway provider. how can i account 
anything that has 12345# or can I account it via the IP address of their 
gateway? TIA

Regards,
nhadie