-- <SIP/rdesktop-081f2508> Playing 'followme/options' (language 'en')
    -- User entered nothing.
[Apr  3 15:28:16] WARNING[3383]: ast_expr2.fl:407 ast_yyerror: ast_yyerror():  syntax error: syntax error, unexpected '|', expecting $end; Input:
 | 2
 ^
[Apr  3 15:28:16] WARNING[3383]: ast_expr2.fl:411 ast_yyerror: If you have questions, please refer to doc/channelvariables.txt in the asterisk source.


Dialplan section:

exten => s,n,Read(ACCEPT|followme/options|1)
exten => s,n,Set(ACCEPT = $[ ${ACCEPT} | 2 ])
exten => s,n,GotoIf($[${ACCEPT} = 1 ] ?YES|1:NO|1)