Fax issues with Rls 6 and SIP DDI Trunks

[chrisay59]

Hi guys I am having an issue in regards to incoming external Faxes via SIP Trunks, basically it appears that G711 pass through does not work, the CS1K keeps trying to re-negotiate it as T38, and the Fax fails. Not surprisingly our provider has just told us that they do not fully support T.38!

Has any one else had any issues in regards to SIP Trunks and Faxes in Rls 6

 

[johnpoole]

i could not find a solution to this one either.. user had to add two tdm pris, looped back to back.. then route the faxes out and back in.. that was just a quick workaround and i do not know if they found a permanent solution.. without the back to back they would have had to send the call out to the pstn to change it to tdm

john poole
bellsouth business
columbia,sc

 

[johnpoole]

i would like to try changing inbound call type to see if that is part of the solution..

john poole
bellsouth business
columbia,sc