Re: [Asterisk-Users] RE: Outgoing call to IVR not being "answered"

[Paul Cheng]

This is the same problem that I've posted previously about "early 
audio". Depending on the device and your particulary NAT setup, early 
does and doesn't work. IAX does pass the DTMF with Cisco ATAs, but with 
other devices it does not. Still haven't managed to solve this one 
except with DTMF set to inband, but then you cannot use a compressed 
codec like g729 or g723. See the appropriate bug reports on 
bugs.digium.com. If someone does figure this out with out-of-band DTMF, 
it would be great.

On Saturday, October 18, 2003, at 10:10  PM, David Harris wrote:

Juan,

That is a helpful discovery.  If I too route the calls out of an IAX
provider (voicepulse) rather then my usual Cisco SIP Gateway I can get
DTMF through with the Cisco phone still not presenting the usual "soft"
key options.
So that means that the Cisco IP Phone IS sending DTMF to calls that are
not yet "connected" and that either the asterisk box or the Cisco SIP
Gateway are the ones not transmitting.
Thanks,
David
	I see the same problem, I�m trunking 800 through IAXTEL. When I
dial
American I only see the end call button only but DTMF works; after
choosing an option I get the rest of the buttons.
        So I think at least the DTMF problem can be solved.




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