On 8/26/2010 2:55 PM, M S wrote: > Hi, > > I've been getting complaints lately that callers to my IVR are > pressing a digit once but the system is responding as if they pressed > it twice (once for each of two consecutive menus). > I'm using an AGI script and logging all DTMF entries - and to the > script, at least, it looks like the digit is being pressed twice. The > TN being called is a VOIP number (provided by Flowroute) and being > forwarded via SIP to my asterisk 1.6.2.4 server. The dtmfmode is set > to rfc28333 in sip.conf. > > The first time this happened, I figured the caller pressed the number > twice without realizing it. It's happening to too many people for > that to be plausible anymore. I also experienced it once myself, > months ago, when I entered my tn as 1234567890 and had it read back to > me as 1122334455. > > Can anyone give me some pointers where to start troubleshooting? Can > overloading a system cause such an error? > > Thanks, I have seen this before. Upon careful analisys we saw that the far end was sending the digits in RFC2833 plus SIP INFO (or Inband, I can't remember). Thus Asterisk detected double digits. The solution was to ask the remote end to only send RFC2833.
Andres http://www.telesip.net -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
