Quoting from H.248 Appendix A, middle of the 2nd paragraph: "For example, G.711A-law is called PCMA in the SDP, and is assigned profile 0. G.723 is profile 4, and H263 is profile 34. See also http://www.isi.edu/in-notes/iana/assignments/rtp-parameters "

The URL above is supposed to be an up to date list, it has G.723.1 but it does not have info on the G.729 profile.

Nancy -------------------------------------------------------------------------- Nancy M. Greene Internet & Service Provider Networks, Nortel Networks T:514-271-7221 (internal:ESN853-1077) E:ngreene@nortelnetworks.com

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From: Frank Derks[SMTP:frank.derks@PHILIPS.COM] Sent: Tuesday, February 22, 2000 10:30 AM To: ITU-SG16@MAILBAG.INTEL.COM Subject: Registered payload types for G.723.1/G.729

H.225.0 specifies that the payload types for G.723.1 and G.729 are 4 and 18 respectively. When I take a look at the registered payload types at the IANA, these two codecs are not listed.

Does this mean that the IANA list is not up-to-date or that these codecs are not officially registered.

Frank

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Frank Derks |Tel +31 35 6893238 | Advanced Development |Fax +31 35 6891030 | Philips Business Communications|P.O. Box 32 | |1200 JD Hilversum | |The Netherlands | ----------------------------------------------------| E-mail: mailto:frank.derks@philips.com | WWW: http://www.sopho.philips.com |

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