[VoiceOps] T.38 termination provider?

[David Hiers]

We terminate our T38 in-house and send t30/711 to our upstream
carriers.  It works pretty well, but it's not a panacea.

In general, we find that T38 fixes some problems, moves some problems
from the far end to the fax/ata interface, and invents entirely new
ones.

++ on Alex's long fax experience.


David



On Mon, Dec 12, 2011 at 8:53 PM, Nathan Anderson <nathana at fsr.com> wrote:
> So, do T.38 only last-mile to the ATA, then dump it back into the audible
> domain at our own SBC and pass it to our termination provider as a G.711u
> call?  Interesting idea...I'll chew on that for a bit.  Thanks.
>
> -- Nathan
>
> ________________________________
> From: Peter Childs [mailto:PChilds at internode.com.au]
> Sent: Monday, December 12, 2011 6:59 PM
> To: Nathan Anderson
> Cc: voiceops at voiceops.org
>
> Subject: Re: [VoiceOps] T.38 termination provider?
>
>
> Slightly off topic but from spec sheet the new transcoding NUIs in the
> low-end ACME SBCs (3820/4500?) in theory can handle T.38 to T.30(ulaw/alaw)
> interop, so you might be able to 'wrangle' it yourself.
>
>
> --
>  Peter Childs - Voice Engineer
>  Internode/Agile
>  Ph: 08 8228 2380 Mb: 0406 388 405 Fax: 08 8235 6801
>
> On 13/12/2011, at 12:26 PM, Nathan Anderson wrote:
>
> Hello,
>
> New to the list.  I work for a regional broadband ISP who is looking to also
> become an ITSP.
>
> We are looking for a good SIP termination provider with reasonable rates to
> all of North America that also happens to guarantee T.38 gateway support for
> 100% of calls.
>
> Currently, we are using FlowRoute.  We are happy with the service, but the
> odds of us hitting a gateway (through one of their upstreams) that will
> accept our T.38 re-INVITE are about 50/50...not very good.
>
> We tried Gafachi, but that was not a good experience.  Their rate table is
> all kinds of screwed-up.
>
> The only other one I've been able to find in my searches is Alcazar
> Networks.  Anybody have any first-hand experience with them who can vouch
> for them as well as their T.38 support for the wholesale termination
> product?
>
> Other recommendations are also welcome, as well.  Although we may someday go
> down the road of loading an LCR table into our SBC, at this point we are
> looking for a single solid termination provider that will handle 100% of our
> outbound call volume (a mix of voice and fax); we can fall-back to FlowRoute
> as a backup solution if the primary provider goes down.
>
> Thanks a million,
>
> --
> Nathan Anderson
> First Step Internet, LLC
> nathana at fsr.com
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