Field in IDOC invoc02 E1EDKA1-telf1

hi,

I am using transaction WE19 to post one IDOC in the segment E1EDKA1 i am having a field telf1

i want to know where does this field get papulated.

i got the invoice number 5xxxxxxxxxx i went to mir4 and the displayed the invoice after the idoc was

posted sucessfully but was not able to find the value i gave it to the field telf1 in the segment

E1EDKA1.

can any one let me know where does this get papulated in SAP.

i scearched RBKP i was not able to get.

thanks,