filepro+procomm backspace mapping

[Enrique Arredondo]

I'm running filepro for linux, what would be the mapping for the BACKSPACE 
key using a WYSE50 emulation under Procomm via TELNET connection 
(symantec) ?

I tried ^H (crontol H) but it won't delete, it just moves back the cursor. 
and in some other cases it advances the cursor instead.

if I look for the termcaps what should I look for to find the backspace 
key. ?

Thanks