SQL & PL/SQL

Hi all,

I have executed the below block but i am getting error.

DECLARE
V_RCV_SMS_STR VARCHAR2(5000);
REQ    UTL_HTTP.REQ;
RESP   UTL_HTTP.RESP;
VALUE  VARCHAR2(32000); 
V_RESPONSE_SMS     VARCHAR2(4000);
BEGIN
V_RCV_SMS_STR :='http://www.meru.co.in/wip/sendsms?username=asda'||'&'||'password=asas'||'&'||'to='|| 1111111||'&'||'message='||'Test%20Message%20from%20Shanmugam';
REQ := UTL_HTTP.BEGIN_REQUEST(RCV_SMS_STR);
   UTL_HTTP.SET_HEADER(REQ, 'User-Agent', 'Mozilla/4.0');
  RESP := UTL_HTTP.GET_RESPONSE(REQ);
  UTL_HTTP.READ_LINE(RESP, VALUE, TRUE);
  V_RESPONSE_SMS := VALUE;
  UTL_HTTP.END_RESPONSE(RESP);
  UTL_HTTP.END_REQUEST(REQ);

EXCEPTION 
  WHEN OTHERS THEN
  dbms_output.put_line('Request Failed: ' || utl_http.get_detailed_sqlerrm);
  V_RESPONSE_SMS := NULL;
   UTL_HTTP.END_RESPONSE(RESP);
     utl_http.end_request(req);   
END;

I am getting error like

Error report:
ORA-29273: HTTP request failed
ORA-06512: at "SYS.UTL_HTTP", line 1389
ORA-29261: bad argument
ORA-06512: at line 23
ORA-29273: HTTP request failed
ORA-06512: at "SYS.UTL_HTTP", line 1029
ORA-12545: Connect failed because target host or object does not exist
29273. 00000 -  "HTTP request failed"
*Cause:    The UTL_HTTP package failed to execute the HTTP request.
*Action:   Use get_detailed_sqlerrm to check the detailed error message.
           Fix the error and retry the HTTP request.

Can anyone help me out to fix this error.


Cheers,
San