i want to ask some question

we use kannel_1.2.0 and running in the redhat 7.0 pc
we use sony_ecrssion mms phone send data to wap gatway ,the first invoke 
wtp pdu is"0a0b....",wap gateway send ack wtp pdu is "1c8b 6100..." and 
phone re ack wtp
pdu is "1c0b 6100..." ,then wap gatway re send result wtp pdu is "168b...".

i want to ask that why phone send a invoke wtp pdu which need sar ,but 
could success commuication with wapgateway by no sar trachsaction 
identifier verification?
  
 i think this time ,the phone send invoke wtp pdu 'T and G not "10",but 
"11" .
      
    thank you 




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