Re: [rtcweb] Traffic should be encrypted. (Re: Let's define the purpose of WebRTC)

[Hadriel Kaplan <[e-mail]>]

I think it's a SHOULD implement, but that's not the same as MUST *use*.  ( though it may have meant SHOULD use)

Regardless, I don't see what that has to do with this SRTP topic.  Clearly DTMF is used in cases where privacy is important since it often represents PINs.

-Hadriel

Sent from my iPhone

On Nov 11, 2011, at 9:58 AM, "Roman Shpount" <[e-mail]<mailto:[e-mail]>> wrote:


On Fri, Nov 11, 2011 at 8:38 AM, Hadriel Kaplan <[e-mail]<mailto:[e-mail]>> wrote:

I think using in-band tones in RTP for DTMF instead of 4733 would be a really bad idea.


This is not what I've said. What I said was that the rest of the industry is using AVT tones (RFC 2833/4733) compliant DTMF tones without SRTP and normally does not force SRTP if you plan to use RFC 2833 tones. Even though there is a SHOULD requirement for SRTP in conjunction with RFC 4733, the industry ignores it as being excessive and uses RFC 4733 tones in plain RTP, which is what I am suggesting. Not using SRTP does not mean that we need to switch to in band tones.
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Roman Shpount