Yep, most phones won't send RTP which'll include DTMF until 200 OK (answer) is received... That will depend on the caller really so perhaps it does work on certain phones/versions, but not all will allow it. -Steve On 17 January 2013 14:11, Paul Cupis <paul@cupis.co.uk> wrote:
On Thu, Jan 17, 2013 at 08:38:43AM -0500, Frank Carmickle wrote:
I can't seem to read digits with pre_answer. Answer works just fine. I know this used to work. I'm not sure if it's upstreams problem or mine. Where should I look?
pre_answer will use Early Media, which will be one-way audio, so I would not expect you to be able to read digits from the caller unless you answer the call.
Regards,
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