FAX over VOIP -> T.38 : which ata? - Ubiquiti …

We have tested a lot of ATAs two years ago (Grandstream, Sipura, Audicodes etc.) to find anything for reliable faxing. Although having a lot of problems with many ATAs, the T.38 UDP has proven to have better results than simple G.711, but it must be well implemented in both ATA and the other end of SIP call - probably some gateway.

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