For faxing, HTTPS faxing using Audiocodes adapters with Faxback technology has been the only reliable solution for us. Not sure about credit cards. T38 seems to be a joke.
On Tue, Sep 9, 2014 at 9:39 AM, Jamey <[email protected]> wrote: > Hello, > We having been utilizing Grandstream ATAs (HT70X and GXW400X) as analog > hand offs with our Hosted Services built on the Broadworks platform and > Sansay's SBC. We've had regular trouble when using them with fax and > credit card machines. We support t38 but have often gone to g711 > pass-through. Echo cancellation is disabled. We've tested them with the > various jitter buffer lengths, Rx/Tx setting adjustments and various > impedance values. The results seem very inconsistent. This is site to > site as well as inconsistent results at the same site. The faxing/credit > card transmissions will work for a period of time and then begin failing > without any changes. > > We are a CLEC who control the QoS from device out to the PSTN. We've > found that replacing the ATA with a Adtran TA90X usually corrects the > issues but this is not a cost effective solution. > > Anyone have similar experiences with Grandstream ATAs? Anyone have > reliable VoIP faxing with their ATAs? If anyone has been successful > integrating the Grandstreams, I would be interested in knowing what config > changes you've made from their default. Which models you've used with > which firmware? > > Anyone have other ATA's that seem to work well for faxing and credit card > machines? We'd like to keep our offering to as few manufacturers as > possible that can offer 2, 4, 8+ FXS ports. > > Thanks for any and all recommendations. > > Jamey > Socket Telecom > _______________________________________________ > VoiceOps mailing list > [email protected] > https://puck.nether.net/mailman/listinfo/voiceops >
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