On 12/14/2009 08:05 PM, Peter P GMX wrote: > We currently use Patton gateways SN4116 for attaching fax and modem > equipment to our Freeswitch system. Freeswitch is in bypass-media-mode, > so media flow goes the following way: > Modem/Fax => Patton_SN4116 => Patton_SN46XX =>PSTN/ISDN > However modem connections are not very reliable. We exchanged the SN4118 > against a "Fritzbox" ATA and the situation improves. However Fritzboxes > do not deliver the number of ports we need. > > What is your experience? Which ATA is the best choice for modem connections? > Best regards > Peter > > Your improvement is probably more due to luck than engineering.
Turning off any dynamic jitter buffering, and making sure you use only A-law or u-law, will reduce the failures. the only thing that will give reliable results for modems is a managed, absolutely lossless, packet path, and terminal equipment which does doesn't slip data samples to allow for mismatched sampling clocks. Good luck finding those. Steve _______________________________________________ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
