[Freeswitch-users] Exchange 2007 UM - DTMF problem

[Brian West]

So if you can tell me where this is wrong as per 2833 and the  
clarification via 4733 ?

rfc4733 obsoletes  rfc2833 and says this:
    The special duration value of zero is reserved to indicate that the
    event lasts "forever", i.e., is a state and is considered to be
    effective until updated.  A sender MUST NOT transmit a zero duration
    for events other than those defined as states.  The receiver SHOULD
    ignore an event report with zero duration if the event is not a
    state.
/b
PS: http://www.rfc-editor.org/rfc/rfc4733.txt

On Jun 28, 2008, at 11:10 PM, UV wrote:

> The only page I found on UM is http://wiki.freeswitch.org/wiki/Exchange_2007_UM 
>  and even there it’s stated “bypass_media_true was used because DTMF  
> was not interpreted by FreeSWITCH (bug ?)” so I guess they couldn’t  
> make it work as well.
>
> In a working scenario (using SJPhone) the Event Duration starts from  
> 0 (in the first packet) and then 160, 320, 480 and so forth until  
> three identical packets of 2280. In the non-working scenario (no  
> pass though), it’s exactly the same but without the first packet of  
> Event Duration 0.
>
>