[Asterisk-Users] Re: DTMF, Asterisk, External PSTN gateway, and PAP2

Eric Wieling aka ManxPower eric at fnords.org
Tue Aug 16 06:09:26 MST 2005


Sherwood McGowan wrote:
> I'll pass that on to my lead engineer, he was under the assumption that
> rfc2833 was too unreliable. I personally don't know, but will look further
> into the matter. 

You need a new engineer.  OOB DTMF like RFC2833 is more reliable than 
inband.  With inband even a tiny audio glitch while the user is sending 
DTMF can mess things up.



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