Hello Freeswitch Gurus!

I have a simple problem I am hoping someone might be able to help me with.  I want to configure a SNOM phone automagically using SIP messages.  The process is described here: http://wiki.snom.com/Category:HowTo:XML_SIP_Settings
I have created a Freeswitch module which sends the appropriate SIP message to the phone but I have hit a small snag.  In order for this to work, two headers must be set in the SIP message else the SNOM will ignore the request.  Those are:

Event: snom-settings
Content-Type: application/xml

I have code which should do that but when I do a packet capture, I can see that the "Event" header is not in the SIP message that is sent.  The code I am using is listed below.  Is there something obvious that I am doing wrong?

According to the output I get in the Freeswitch console from my module, the "Event" header is successfully added to the event, however it isn't present in the SIP message.

Many thanks in advance,

Ronnie


Code:

//Send the configuration
if (switch_event_create(&event, SWITCH_EVENT_SEND_MESSAGE) == SWITCH_STATUS_SUCCESS)
{
    switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "user",user);
    switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "host","10.0.0.23");
    switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "profile","internal");
    switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Subject","buttons");
    returnValue = switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Event","snom-settings");
    switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Content-Type", "application/xml");
    switch_event_add_body(event, "<settings>"
    "<phone-settings>"
    .
    .
    <snip>
    .
    .
    "</settings>");
    switch_event_fire(&event);


    if( returnValue != SWITCH_STATUS_SUCCESS )
        switch_log_printf( SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "(%s) Failed to set Event header for user %s.\n", __FUNCTION__, user );
    else
        switch_log_printf( SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "(%s) Succeeded to set Event header for user %s.\n", __FUNCTION__, user );
}

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