Hi,
For the curious, here's the ITU description of the protrocols.
H.225, Call signalling protocols and media stream packetization for packet-based multimedia communication systems
H.245, Control protocol for multimedia communication
H.261, Video codec for audiovisual services at p x 64 kbit/s
H.323 Packet-based multimedia communications systems
G.711, Pulse code modulation (PCM) of voice frequencies
G.723, [Withdrawn] Extensions of Recommendation G.721 adaptive differential pulse code modulation
to 24 and 40 kbit/s for digital circuit multiplication equipment application
G.723.1 Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbit/s
G.728, Coding of speech at 16 kbit/s using low-delay code excited linear prediction
G.729 Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear-prediction (CS-ACELP)
Q.850, Usage of cause and location in the Digital Subscriber Signalling System No. 1
and the Signalling System No. 7 ISDN User Part
Q.931, ISDN user-network interface layer 3 specification for basic call control
Q.932, Digital subscriber signalling system No. 1 - Generic procedures for the control of ISDN supplementary services
Q.952, Stage 3 description for call offering supplementary services using DSS 1 - Diversion supplementary services
Q.953,
Q.953.1 Call waiting
Q.953.2 Call hold
Q.953.3 Completion of Calls to Busy Subscribers (CCBS)
Q.953.4 Terminal Portability (TP)
Q.953.5 Call Completion on No Reply (CCNR)
Q.955,
Q.955.1 Closed user group
Q.955.3 Multi-level precedence and preemption (MLPP)
Q.956,
Q.956.2 Advice of charge
Q.956.3 Reverse charging
Q.957,
Q.957.1 User-to-User Signalling (UUS)
Best regards
Anders
-----Original Message-----
From: Guy Harris [mailto:guy@xxxxxxxxxxxx]
Sent: den 23 september 2003 05:10
To: Richard Sharpe
Cc: ethereal-dev@xxxxxxxxxxxx
Subject: Re: [Ethereal-dev] Has anyone seen a recent version of
Etherpeek ...
On Sep 22, 2003, at 12:11 AM, Richard Sharpe wrote:
> It also claims:
>
> ASN.1, H.225, H.245, H.261, H.323, G.711, G.723, G.728,
> G.729, Q.850, Q.931, Q.932, Q.952, Q.953, Q.955, Q.956, Q.957, SAP,
> SSDP, SIP
>
> Howe many of these are we handling so far?
Whether we handle "ASN.1" depends on what you mean by "ASN.1"; we
dissect a number of protocols that use ASN.1 BER/DER and PER encodings.
We have H.225, H.246, H.261, and H.263 dissectors, although I don't
know how much of those we dissector or, if we don't handle all of them,
what's missing.
I think "H.323" isn't a protocol but a suite of protocols, including
the ones mentioned in the previous paragraph.
We don't dissect G.711 except as data - I suspect it might just be a
sequence of 8-bit(?) sound samples, but perhaps not. We don't appear
to have dissectors for G.72{389}.
I don't remember what Q.850 is, offhand; we do have a dissector for
Q.931, but not the other Q. protocols (unless there's nothing to
dissect, or if they're just small addenda to other protocols and we
already handle those addenda).
We have a dissector for RFC 2974 SAP; we dissect the Simple Service
Discovery Protocol as HTTP; we also have a dissector for RFC 2543 SIP.
(Is that Wildpackets' list of VoIP protocols they handle?)
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