asterisk users - Jul 2006 - Option D in dial doesnt seem to be working

I have 2 SIP phones ext 401 and 402 and am using 1.2.9.1 (this seemed to 
work in previous versions).

In my dialplan I have

exten => 55,1,Dial(SIP/402,,tTD(222))

When 401 comes offhook and dials 55 and I answer on 402 I do not hear 
the DTFM of 222.

Am I doing something wrong?

when I change it to
exten => 55,1,Dial(SIP/402,,tTD(222:333))

I do hear the DTMF tones on my phone (401) but still not on 402?

Jerry