asterisk users - Jun 2004 - exten => i ????????

Ok so here's one

Has anyone managed to get the 'i' extension to work.
I have included within each context the following

exten => i,1,Goto(wrong-number,s,1)

then in
[wrong-number]
exten => s,1,GotoIf($[${EXTEN:0:2} = 43}]?10:2)
exten => s,2,GotoIf($[${EXTEN:0:2} = 62}]?11:99)
exten => s,10,Goto(main-office,${EXTEN},1)
exten => s,11,Goto(remote-office,${EXTEN},1)
exten => s,99,Congestion

Problem is the i does not seem to work at all , any suggestions ( have
searched the WiKi )

Best Regards
Simon