Hi all,

I installs vovida B2BUA on linux with proxy server SER.

B2BUA and SER work fine.Here has a problem.

I uses messenger 4.7 and kphone as sip client.

I establishs session by B2BUA and SER.But why can't I see UDP packet pass through B2BUA.

(1) (4)

messenger 4.7 ---------------------> SER ---------------------------> kphone

| |

(2) | | (3)

| |

B2BUA

Thanks.