it's a media bug.
it just hides in the background like fax_detect and if it hears a fax tone it turns into gateway mode.
from there it can re-invite OR wait for re-invite, if no negotiation is made it will pass the audio fax across anyway.
passthrough is turned on with a variable, if set everything goes on as normal (no need for proxy mode)
it will pass the t38 invite both ways and if it realizes there is a t38 negotiation it will pass it.

for regular termination it's just automatic, either send or wait for re-invite based on config 

It probably does everything and anything you want better than you think, just try it.....




On Fri, Jun 4, 2010 at 10:35 AM, Kristian Kielhofner <kris@kriskinc.com> wrote:
You could use FreeSWITCH in proxy media or bypass media without any
specific T38 support right now...

On Fri, Jun 4, 2010 at 11:17 AM, Peder <peder@networkoblivion.com> wrote:
> Is T38 forced on if you do this, or does it just enable the feature if it
> sees it in a reinvite?  We have a bunch of fax lines w/ SPA2102 and then we
> use Cisco routers as PRI-SIP gateways.  Some of the people use the lines for
> phone too, so I need it to support T38 and regular g711 calls.  Right now we
> just point the SPAs direct to the Cisco gateway and it works fine, but we
> lose all accounting capability, voicemail, etc that we want/need.
>

--



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Anthony Minessale II

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