Revised-msg(Studygroup 16/D draft uploaded)

[Hong Liu]

Edgar,

How are you doing? Just want to let you know that these two documents are
not in the incoming directory. Could you send me an electronic copy? Thanks!

--Hong

Edgar Martinez wrote:

> Please find a version of Tun&H.246.doc and Tun&H.246.zip that I have
> uploaded into
> ftp://standard.pictel.com/avc-site/Incoming/ for the washington meeting
> Apr 21.
>
> Summary
> This contribution discusses a framework for transporting signaling
> protocols
> (SS7, TCAP, ISDN, QSIG and DPNSS) over IP packet networks.  The
> framework is
> referred to as signaling 'backhaul'. The backhaul or tunneling takes
> place
> between a Media Gateway (MG) and/or Signaling Gateway (SG), which
> interfaces
> between the circuit world (PSTN) and the IP packet world GateKeeper (GK)
> and a
> Media Gateway Controller (MGC), which provides call processing.  It is
> referred
> to as 'backhaul' because the gateway terminates the lower layers of the
> protocol
> (i.e. Layer 1 and 2) and backhauls the other layers to the MGC and/or
> Gatekeeper. Annex A provides a overview how the RAS messages may
> interwork INAP.
>
> Best Regards,
> Ed Martinez
> mailto:martinze at cig.mot.com