Hi Simon

I had already overloaded the function CreateH224ProtocolHandler as

OpalH224Handler * PhEndPoint::CreateH224ProtocolHandler(H323Connection & connection, unsigned sessionID) const { return new CVcsChannelh224(connection, sessionID); }

CVcsChannelh224 is my class derived from OpalH224Handler and PhEndPoint derived from H323EndPoint

but still my application crashes at h224Handler->StartTransmit(); in BOOL H323_H224Channel::Start() I have tested it using polycom and mirial.

But when I use my application at other end. the cnannel get released by calling if (chan != NULL) { chan->CleanUpOnTermination(); delete chan;

of void H245NegLogicalChannel::Release()

I think I am not able to add capabilities right by adding : H323_H224Capability *p = new H323_H224Capability(); capabilities.Add(p);

Is there something that I am missing. and one more thing Can I use PTRACE in Windows. Your comment is needed.

Regards Alam

On 1/11/08, Simon Horne s.horne@packetizer.com wrote:

Sorry for the delay in replying.

I hadn't fully tested the implementation. I think you have not loaded your derived h224 handler through the H323EndPoint function override I specified in the last email

Simon

-----Original Message----- *From:* h323plus-bounces@lists.packetizer.com [mailto: h323plus-bounces@lists.packetizer.com]*On Behalf Of *mohammad alam *Sent:* Thursday, January 10, 2008 5:56 PM *To:* h323plus@lists.packetizer.com *Subject:* [h323plus] FECC H.224/H.281 Implementation

hi Simon As you suggested I have added H323_H224Capability(). The brief code is

H323_H224Capability *p = new H323_H224Capability(); capabilities.Add(p); in a class derived from H323EndPoint.

The watch window here doesnot show much.

But exe crashes in BOOL H323_H224Channel::Start() at h224Handler->StartTransmit(); I think it is not getting pointer right

Can you guide me from there.

alam.