Digit Relay with Wireless Codecs?

Discussion in 'VOIP' started by James Calivar, Nov 14, 2003.

  1. I am researching the capability of various wireless speech codecs in
    handling DTMF digits. Since these codecs are typically rather low rate, one
    would expect that their ability to reliably transmit pure tones, music
    and/or multitone digits would be compromised. I see in the SMV codec
    specification that they specifically have implemented a method of supporting
    both music and digits; what about other wireless codecs? I don't see
    anywhere in the spec's for EVRC, or GSM-FR, GSM-EFR or the AMR codec where
    digits are handled. I'm specifically interested in how these digits would
    be handlend over an IP network - just using generic RFC 2833 support?

    Thanks in advance,

    J
     
    James Calivar, Nov 14, 2003
    #1
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