[asterisk-users] Off-topic: SIP DTMF most supported method

[Cesc Santa]

Hi,

I know it is a bit off-topic, but I'd like to ask the community what is the
current most supported way to deal with DTMF?
I'm looking for an all-SIP system and I'm mostly interested in the end
devices support of the different methods (DTMF in-band audio, DTMF RTP
telephony events packets, SIP INFO, ...)

Thanks in advance.

Cesc
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