I have some questions about T.30 fax, Could you give me some advice ?

Aimj,

guess your look for facsimile/modem over IP networks (and
not ATM or TDM).
Right?

If yes, there are principal transport options:

1) Fax pass-through according V.152 (Fax as VBDoIP)
2) Fax packet relay according T.38 (Fax as FoIP)

Both user plane interworking functions in an H.248 MG have
different
control aspects.
See
for (1): § 7.1.1/V.152 Mechanism for indicating support of
V.152 using
H.248/Megaco
for (2):
      Annex E/T.38 ? H.248.1 call establishment procedures
      Appendix III/T.38 ? H.248 call establishment procedure
examples for
facsimile-capable media gateways

You may found out that there are basically at least two
possibilities for
control of T.38 endpoints ("autonomous" vs
"MGC strict control"). The 2nd
method requires principally H.248.2 support.

-Albrecht

                      "megaco magic"              

                      <magic.megacogm         To:     
megacoietf.org                                             

                      ail.com>                 cc:       

                                               Subject:
[Megaco] I have some questions about T.30 fax,  Could you
give me some advice ? 
                      01.04.2007 14:45                      

Dear All:

I have some questions about T.30 fax, Could you give me some
advice ?

1. Should  the T.30 FAX protocal callflow controled by MGC
?

2. if MGC must control T.30 FAX callflow, How to distinguish
it by MGC?

Thanks,
aimj_______________________________________________
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I have some questions about T.30 fax, Could you give me some advice ?

Thread: I have some questions about T.30 fax, Could you give me some advice ?