asterisk users - Aug 2004 - Faxing over ulaw

Are there any considerations to take in account when faxing from analog
to SIP using ULAW? The problem we're having is faxes are only making it
halfway, getting cut off. Neither fax machine seems to report an error.

Pretty diagram:

FXS --> SIP --> PSTN Provider --> FAX
		^ULAW

On Tuesday 17 August 2004 09:33, Matt Schulte wrote:
> Are there any considerations to take in account when faxing from analog
> to SIP using ULAW? The problem we're having is faxes are only making it
> halfway, getting cut off. Neither fax machine seems to report an error.
>
> Pretty diagram:
>
> FXS --> SIP --> PSTN Provider --> FAX
> 		^ULAW
It's the 'net connection.

I have

FaxMachine -> FXS -> * -> * -> PRI

and it works perfectly.  IAX2 ULAW between the two * boxes (one hop, not 
public internet)

FaxMachine -> FXS -> * -> * -> Nufone

IAX2 and ULAW again and it's spotty at best.  It's not nufone's
fault, and we
have a Canon IR3300 which is picky even at the best of times.

-A.