SQL & PL/SQL

Hi ALL,

I am trying to create out parameters in a Procedure. This procedure will be called by 4 other Procedures.

PROCEDURE create_serv_conf_attn_cc_email
( v_pdf_or_text varchar2,
v_trip_number number ,
v_display_attn_for_allmodes out varchar2,
v_display_cc_for_allmodes out varchar2,
v_multi_email_addresses out varchar2,
v_multi_copy_email_addresses out varchar2
)

When I call that procedure in another Procedure I am getting following error, which is caused by one of the out parameter being more than 255 characters.
I found that out via dbms_output.put_line(ing) one of the out parameter as I increased its size.

ORA-06502: PL/SQL: numeric or value error

I thought there was no size limit on any parameters passed to a Procedure.

Any one know of this limit of 255 characters on varchar2 Procedure parameters? Is there a work around keeping the same logic?
If not I will have to take those parameters out and resort to some global varchar2s which I do not like.

Thanks,

Suresh Bhat