Jono wrote:
> Gordon Henderson explained on 15/07/2007 :
>
>>
>> You need both t and T in the Dial() command in the dialplan.
>>
>> I've no idea how you implement this in Trixbox though.
>>
>> Gordon
>
> Yes, thanks. I had considered that, however, any IVRs that require a #
> to be dialled result in the transfer process commencing.
>
> I wish the Siemens' R key worked.
>
>

The Siemens "R" key does work, Asterisk doesn't know how to handle the
flash-hook signal that the R key sends. The actual signal depends on
your selected DTMF method, rfc2833 sends an RTP DTMF Event message with
a value of 16. SIP Info sends a SIP INFO message with event value 16
but you can change this in the Siemens config because there is currently
no standardised way of sending a flash hook in SIP Info.

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