Hi Jeff,
On Tue, Sep 25, 2012 at 10:11:27AM -0500, Jeff LaCoursiere wrote: > > Aha! That is what I am looking for. What firmware rev are you > using on the 3102? 5.1.12 on SPA8000, 5.1.10(GW) on SPA3102, there is probably new releases from Cisco, at the time I builded the T.38 network those were the latest releases. Here is my SPA3102 configuration that I changed or are relevant to FAX/T.38: Network Jitter Level: very high Jitter Buffer Adjustment: disable Call Waiting Serv: no Three Way Conf Serv: no Echo Canc Enable: no Echo Canc Adapt Enable: no Echo Supp Enable: no FAX CED Detect Enable: yes FAX CNG Detect Enable: yes FAX Passthru Codec: G711a FAX Codec Symmetric: yes FAX Passthru Method: NSE DTMF Tx Mode: Normal FAX Process NSE: yes FAX Disable ECAN: yes FAX Enable T38: yes FAX Tone Detect Mode: caller or callee Note that my Asterisk is also configured to do Fax Tone Detect and ask my ATA to switch to T.38 before my ATA ask Asterisk to do so, thereforce I don't know if ATA Fax Tone Detection work correctly. > So if I am parsing you correctly, the asterisk server the ATA is > registered to is *also* a T.38 gateway, as you have directly connected > ISDN? Yes, this is also a T.38 gateway, my goal was to use T.38 from my ATA to Asterisk over my non-isochronous IP network. T.38 gateway is supported since Asterisk >= 10 and you don't need it since you are doing T.38 passthru, but you need a device somewhere on the path able to detect the FAX preamble and ask to switch the data channel from ulaw/alaw to T.38. Sylvain
signature.asc
Description: Digital signature
-- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users