Can I somewhere find out which codecs that can be used to send in-band DTMF?
I know that it is possible using for example g.711, but how about other codecs? I guess there is a risk that the compression of the codec is to "narrow" so that frequencies that are needed for transporting DTMF will be left out? This means that DTMF cant be sent in-band for that codec, am I correct? Does someone know of a list where I can find this info? I'm especially interested in g.711, g723 and g729. Thanks, // Andreas _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
