Also check H.323 Annex D in version 4. It has the call signaling flows.
Version 4 includes switching from voice to fax.

> -----Original Message-----
> From: chimura730@AINET.OKI.CO.JP [mailto:chimura730@AINET.OKI.CO.JP]
> Sent: Sunday, May 06, 2001 9:08 PM
> To: ITU-SG16@MAILBAG.INTEL.COM
> Subject: Re: [wg5-3: 3592] H.323 annex D
>
>
> Hi, Arie
>
> The Fax call flow diagram is described on T.38 Appendix II.
>
> Best Regards,
>
> Yasubumi CHIMURA
> OKI Electric industry Co.,Ltd.
> e-mail: chimura730@oki.co.jp
> -----Original Message-----
> ol : Arie Rehes <rehes@GADLINE.COM>
> ˆ : ITU-SG16@MAILBAG.INTEL.COM <ITU-SG16@MAILBAG.INTEL.COM>
> "Žž : 13"N2OEŽ20" OE'O 12:54
> OE- : [wg5-3: 3592] H.323 annex D
>
>
> >Hello,
> >
> >Do you know when I can see an example for Fax call flow diagram
> >
> >Thank you all.
> >
> >Arie Reches
> >Program Manager
> >Voice Systems Division, Com21
> >P.O Box 45138
> >Jerusalem 91450
> >Israel
> >
> >Tel : +972 2 541 1568
> >Fax: +972 2 586 7590
> >E-mail: areches@com21.com
> >
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