irule redirect to maintenance page

Hello,

I need to redirect traffic to a maintenance html page on an external server. How can i call the page in my irule.
Note that the node that host my maintenance page is on partition CLI03_INTE of my ltm and the VS that use the redirect irule is on partition CLI01_COPROD
node hosting maintenance html page: cnlvip-fe-media.ext1.cdn 172.19.224.244%3 on partition CLI03_INTE
uri: /media_cpa/sfr/cpprospect/maintenence/maintenance.html and 
 /media_cpa/sfr/cpprospect/maintenence/maintenance.jpg

here's the irule i wrote:
  when HTTP_REQUEST {
    if {  [string tolower [HTTP::uri]] starts_with "/necpf/vod-i1-64/cpprospect/" } {
        HTTP::redirect "http:// ????
                  }
}