In my looking at this issue I noted that iax2 is headed for ietf standardization and is currently in draft.  me thinks that a few choice commands placed in the iax2 protocol to do this in call signalling would be quite nice.  (I may ask a friend of mine who works at digium about that)  If IAX2 had the commands to do polarity reversal in call what would it take to have app_rpt control it?

Eric

On 3/11/07, Jim Duuuude <telesistant@hotmail.com> wrote:
No SIP ATA's even come CLOSE to supporting what we need.

What they call battery reversal is an indication that the call has answered
on the far end
which may happen ONLY once per call (if it un-answers on the far end it
terminates the
call).

Our needs are to have a SIP call initiated and for it to say up (rather
permanently or so)
and to have the ability to send on-hook/off-hook states many times as
needed. No
one does this or even has a concept of this.


>From: Stephen Rodgers <hwstar@rodgers.sdcoxmail.com>
>Reply-To: Asterisk Repeater Controler <app_rpt@lists.illiana.net >
>To: Asterisk Repeater Controler <app_rpt@lists.illiana.net>
>Subject: Re: [App_rpt] Remote Base
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>
>Eric,
>
>You can research this further, but I'm not convinced SIP ATA's give a
>fine enough level of control for polarity reversal, or battery
>interruption.
>
>What would be required are special SIP commands which tell the far end
>Asterisk server when a phone goes off hook (for RX), and special SIP
>commands for applying and removing battery for the TX loop.
>
>For RX, SIP ATA's do not work like this. When a user goes off hook, a
>LOCAL dialtone is generated in the ATA, and only when the digits are
>dialed which match a route programmed into the ATA, does the ATA make
>connection with the Asterisk server. For TX, SIP ATA's provide battery
>all of the time and cannot be set up to interrupt battery on an ad-hoc
>basis.
>
>
>Even if all of the above were eventually sfound to be supported, App_rpt
>wuld have to undergo a significant rewrite to support SIP on the
>repeater port. A lot of things in app_rpt depend on the support Zaptel
>provides.
>
>
>
>
>Eric Fort wrote:
> > Steve, Yes I read your reply below...then I googled and composed this
> > query.  Why will it not work?  how can it work?
> >
> > (Worst case a patch to asterisk may come to mind since we are running
> > seperate channels for tx/rx anyway)
> >
> > All of the ata's below (the majority of the market) would appear to
>support
> > polarity reversal  now how can that feature be used with an arib board
>to
> > place a remote node at the end of an ethernet cable across the network
> > (where the controlling asterisk box is say on another continent)?
> >
> > cisco ata186 and ata188
> >
>http://www.cisco.com/en/US/products/hw/gatecont/ps514/products_administration_guide_chapter09186a0080160f73.html#1021012
> >
> >
> >
> > SIPURA SPA-3000
> > http://www.sipura.com/Documents/SipuraSPAUserGuidev2.0.9.pdf
> > also SPA-2000, SPA-2100, SPA-1001
> >
> >
> > ustarcom
> > http://www.utstar.com/Document_Library/0043.pdf
> >
> > HandyTone 286
> > http://www.grandstream.com/user_manuals/HandyTone.pdf
> >
> > Grandstream Handytone ATA-496
> > http://www.grandstream.com/user_manuals/HT-496.pdf
> >
> > Grandstream Handytone ATA-386
> > http://www.grandstream.com/user_manuals/HandyTone-386UserManual.pdf
> >
> > Grandstream Handytone ATA-488
> > http://www.grandstream.com/user_manuals/HT488UserManual.pdf
> >
> > Grandstream Handytone ATA-486
> > http://www.grandstream.com/user_manuals/HandyTone-486UserManual.pdf
> >
> >
> > Eric
> >
> >
> >
> > On 2/27/07, Stephen Rodgers < hwstar@rodgers.sdcoxmail.com> wrote:
> >>
> >> ATA's don't support the line signalling methods required by the ARIB to
> >> indicate PTT and/or COR presence.
> >>
> >> Steve.
> >>
> >>
> >>
> >> David Craig wrote:
> >> > Can App_rpt be used with an ATA for a simplex or half duplex remote
> >> base.
> >> > The example might be an Grandstream HandyTone 286 with the FXS port
> >> > connected ARIB.
> >> >
> >> > I have a situation where I need a very small radio interface and my
> >> > asterisk
> >> > box will be remote via a high speed connection.
> >> >
> >> >
> >> > Thanks for any help.
> >> >
> >> > David
> >> >
> >> >
> >> >
> >>
>------------------------------------------------------------------------
> >> >
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> >>
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> >>
> >
> >
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> >
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