On Thursday 30 Mar 2017, Ikka Tirtawidjaja wrote: > Dear all, > > I have PBX with asterisk 13.x > > a couple of IPPhone that connect to that asterisk PBX send an alphanumeric > dialed phone number. > > for example, in my CDR table, field DST, it show dialed phone number like > - 0C81318304632C (it should be 081318304632) > - 08D11157112 (it should be 0811157112). > > Why it's happening ? and how can I prevent it to happen ?
A, B, C and D are actually valid DTMF digits (they belong in a column to the right of 3, 6, 9 and # respectively, and have the "high" frequency 1633 Hz). TTBOMK they were never actually used for anything in practice, they just keep kicking around like a vestigial organ (compare how computer software for the UK financial industry still includes code to deal with mediaeval pounds, shillings and pence). Is it possible for a 1633 Hz tone, loud enough to swamp the "high" frequency of a dialled digit, to be finding its way somehow into the microphone of the affected phone and confusing it when digits are dialled? -- JM Note: Originating address only accepts e-mail from list! If replying off- list, change address to asterisk1list at earthshod dot co dot uk . -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
