[cisco-voip] Rightfax T.38 issues

[Kris Seraphine]

Thanks for the quick reply.  This is an H.323 gateway so the mgcp commands
won't apply.

I have checked the controller and it's clean.

On 4/16/07, Vince Loschiavo <VLoschiavo at data-corporation.com> wrote:
>
>  According to the Cisco Fax Server Installation Guide-Supplement.pdf:
>
> mgcp fax rate 14400
> mgcp fax t38 inhibit
>
> check your clocking....
> look for slips - > "show controller t1"
> Slips would be indicative of network clock/timing issues.
>
> ____________________________________________________________
> Vincent Loschiavo
> Senior Consultant
> Datacorp
> 18503 Pines Blvd
> Suite 212
> Pembroke Pines, FL, 33029
> "Cisco Advanced Unified Communications Partner"
> Cell Phone:        786-282-1164
> Office Phone:    305-594-6933
> ____________________________________________________________
>
>
>  ------------------------------
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Kris Seraphine
> *Sent:* Monday, April 16, 2007 2:49 PM
> *To:* cisco-voip at puck-nether.net
> *Subject:* [cisco-voip] Rightfax T.38 issues
>
> Hi
>
> I have a customer who's recently installed a rightfax server into their
> network. I've configured their H.323 gateway for T.38.  Inbound faxes seem
> to work fine but outbound faxes fail about 90% of the time.  I thought it
> may be a super G3 issue but unfortunately the gateway does not have enough
> flash to load the 12.4(T) image.  While we're waiting for a flash upgrade
> I asked the customer to work with rightfax on the issue.  They haven't been
> all that helpful but they did disable V.34 and verified that the
> compression method was set to group 3.  To me this should mean the rightfax
> server should negotiate 14.4k and any super G3 fax machine would train
> down to that level.  Am I correct in this assumption?
>
> If so, I'm not sure what would be causing the problems.  the T1 controller
> and ethernet interface show no errors.  I can tell from the debug output
> that the correct dialpeers are being matched and that the DSP is downloading
> the fax codec for these calls but the outbound faxes seem to always fail
> after the first page is sent.
>
> For my dialpeers I have the fax protocol t38 ls-redundancy 0 hs-redundancy
> 0 fallback none and fax-relay ecm-disable commands.  The gateway is a 2651XM
> using the voice aim and a VWIC-MFT-T1 card.  It is currently running 12.3
> (11)T11
>
> any thoughts or suggestions would be appreciated.
>
> --
> kris seraphine
>



-- 
kris seraphine
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