ICAP protocol data chunking with Vontu

I am using ICAP protocol for dlp detection. I am able to connect to DLP engine using the icap protocol. When I send the file with out chunking it works fine. But when I try to do chunking I am facing problem. Theese are the steps followed.

1. Creating chunk of 10240 bytes with preview=true & earlyterminted=false and sent it to DLP engine.
2. It got 200 (continue) response from the icap server.
3. Now again, I am sending another chunk of data with preview=false and earlyterminted=false.
4. Now I got ICAPResponse OK response from the icap server.
5. But I have still some more data to send..

  My Question is whether Vontu supports chunking or not. If yes can you help me out with any references/documents.

Thanks in Advance.