Hi all, I'm installing Hylafax on my Asterisk system. From what I've read, I can either use IAXModem or T38Modem to provide the virtual fax device. So at the risk of starting a religious war, which one should I use? I don't mind running IAX if I have to. I want as much flexibility and stability as I can get. So, what are your recommendations? Mike. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20140324/de4ab8bb/attachment.html>
Personally I use spandsp + res_fax (res_fax.so, res_fax_spandsp.so) and SendFAX/ReceiveFAX applications. 2014-03-24 8:41 GMT+03:00 Mike Diehl <mdiehlenator at gmail.com>:> Hi all, > > I'm installing Hylafax on my Asterisk system. From what I've read, I can > either use IAXModem or T38Modem to provide the virtual fax device. So at > the risk of starting a religious war, which one should I use? > > I don't mind running IAX if I have to. I want as much flexibility and > stability as I can get. > > So, what are your recommendations? > > Mike. > > -- > _____________________________________________________________________ > -- 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 >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20140324/d16a1604/attachment.html>
On Mon, 24 Mar 2014 01:41:47 -0400 Mike Diehl <mdiehlenator at gmail.com> wrote:> Hi all, > > I'm installing Hylafax on my Asterisk system. From what I've read, I > can either use IAXModem or T38Modem to provide the virtual fax > device. So at the risk of starting a religious war, which one should > I use?I have to use both. IAXModem is fine for sending but receives garbage, and T38Modem is fine for receiving but treats all outgoing calls as busy. -- Phil Reynolds mail: phil-asterisk at tinsleyviaduct.com Web: http://phil.tinsleyviaduct.com/
Hi Mike, Am Montag, den 24.03.2014, 01:41 -0400 schrieb Mike Diehl:> Hi all, > I'm installing Hylafax on my Asterisk system. From what I've read, I > can either use IAXModem or T38Modem to provide the virtual fax device. > So at the risk of starting a religious war, which one should I use? > I don't mind running IAX if I have to. I want as much flexibility and > stability as I can get. > So, what are your recommendations?It depends on Your environment and Your asterisk version. If Your connection to the PSTN is via ISDN (eg. channel via DAHDI or CAPI), You should use IAXmodem. The fax is transferred on the audio layer and there is no need to translate it into T.38. If Your connection is via some VoIP Provider using T.38 or via a Mediagateway like BeroFix, You should use T38Modem. Newer versions of asterisk have additional features regarding T.38 (AFAIK). In this case there may be no need for any of the modems. HTH, Karsten
Hi,> I'm installing Hylafax on my Asterisk system. From what I've read, I > can either use IAXModem or T38Modem to provide the virtual fax device.we are using T38modem, it was a long way to get it stable, but finally it works quite good with 10 parallel running T38modems. But your carrier has to support T38, when we began to evaluate this some years ago, this was not true for all. -- kind regards, T.
In my experience iaxmodem + Hylafax is very stable and work in my setups fine. But in these setups I either use ISDN uplinks or SIP trunks with low RTT and jitter (highspeed links to the service provider, no WAN links). Thus, T38 is in my setups not necessary. regards Klaus On 24.03.2014 06:41, Mike Diehl wrote:> Hi all, > > I'm installing Hylafax on my Asterisk system. From what I've read, I > can either use IAXModem or T38Modem to provide the virtual fax device. > So at the risk of starting a religious war, which one should I use? > > I don't mind running IAX if I have to. I want as much flexibility and > stability as I can get. > > So, what are your recommendations? > > Mike. > >