/// <summary>
/// Converts <b>ContactUri</b> to valid Contact header value.
/// </summary>
/// <returns>Returns contact header value.</returns>
public string ToContactValue()
{
SIP_t_ContactParam retVal = new SIP_t_ContactParam();
retVal.Parse(new StringReader(m_ContactURI.ToString()));
retVal.Expires = m_Expires;
return retVal.ToStringValue();
}
/// <summary>
/// Returns this.Contact as string value, but expires parameter is replaced with remaining time value.
/// </summary>
/// <returns></returns>
public string ToStringValue()
{
SIP_t_ContactParam retVal = new SIP_t_ContactParam();
retVal.Parse(new StringReader(m_pContact.ToStringValue()));
retVal.Expires = this.Expires;
return retVal.ToStringValue();
}