Does your carrier support T.38 over SIP? If not, you might want to change SIP carriers.
On Tue, May 20, 2014 at 3:19 AM, Blake Pfankuch - Mailing List < [email protected]> wrote: > I am working with a faxing system that is giving me more nightmares than > I can even count… I am working with a software system that sends FoIP > using T.38 and V.17 faxing. It does not support G711 fallback, and that > has been giving us fits like you would not believe our upstream carrier. > The specific issue lies in paths which do not support T.38 and are trying > to do G711 fallback. I have a pair of 3825 router configured as UBE’s in > an HSRP configuration. > > > > I am looking to mitigate some of these issues by implementing a couple of > TDM PRI’s (one to each device). These PRI’s will be configured in an > active/passive failover group from the carrier side uplinked into the > existing 3825 UBE’s. > > > > My question is on the conversion as I have never done this before. I know > this will pull a DSP (or a couple) for each transcoding session, so I have > 8 PVDM 64’s I am going to throw in these routers. I still need to be able > to support SIP in case of a PRI failure as both PRI’s come in on the same > channelized DS3. > > > > Has anyone had to do this before? Specifically with T.38. Had good luck > with it or should I look towards the solution I planned for next year which > was a pair of ASR1001 routers to act as SBC’s and handle these functions. > > > > Thanks in Advance, > > Blake > > _______________________________________________ > cisco-voip mailing list > [email protected] > https://puck.nether.net/mailman/listinfo/cisco-voip > >
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