It depends really. There's about 3 different ways to send DTMF with SIP. One is inband, as audio. Another is rfc2833, which is not as audio - but still goes via the RTP stream as separate packets. The last one is info, which sends it over the control stream as SIP packets.
- Joshua Colp. On 6/25/05 1:09 PM, "Tzafrir Cohen" <[EMAIL PROTECTED]> wrote: > On Fri, Jun 24, 2005 at 11:57:17AM -0400, Julio Arruda wrote: > >> 2- Out-of-band is as safe/unsafe as having the conversation recorded, >> including pin, by the hacker, if no encrypted voice path is being used. > > I haven't given much thought to this earlier, so I hope the following is > not total crap: > > in-band is in the data and out-of-band goes in the control stream of > SIP, right? If so, those two may be on different pathes, and it is also > possible to encrypt one and not the other. > > I figure it would make sense to encrypt the control stream alone, and > not waste costly resources on the data stream. FTP/Kerberos and (in a > way) telnet/Kerberos are similar. > > /me wander off thinking about the impact of an attacker with just the > ability to drop arbitrary packets from a VOIP connection. _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
