Dave, Thanks for the thoughts - I never thought of Primus replacing the DTMF tones, but I will certainly check that out.
Yes I am using their ATA, which is a Dlink dvg1120 - I did manage to get into the web interface and poked around, but nothing jumped out at me with respect to the DTMF. The other thing I thought to try was a different internet connection, just to rule out the connectivity issue. On further testing, the problem is intermittent, although failing much more often than not. As an aside, hangup detection is also not working on this line - according to Primus they use current interruption to indicate a hangup, but whatever parameters I've tried in Asterisk have no effect. Thanks Martin On March 29, 2006 22:12, Dave Donovan wrote: > Have you tried listening to the analog side of the Primus line with a > regular telephone? I assume you're using a Primus provided ATA since you > mention the TDM400. Sometimes systems use what I've heard termed "DTMF > Clamping". They listen for a tone and then interrupt the audio stream and > replace it with their own, usually of a fixed duration. Perhaps you're > getting the first fraction of a tone, then the clamping kicks in and plays > a full tone. > > An easy way to check for this DTMF clamping is to hold down the key. If > you hold the key for 10 seconds and what comes out at the other end is a 1 > second tone, then something in the middle is replacing your tone. > > Also consider that if the audio is choppy, the tone may come through > partially, then drop out due to packet loss or jitter or whatever then come > back and be heard some more. This may cause the tone to be detected as > though a key were pressed twice. I've had this on my cel phone when the > connection quality is poor. > > As for relaxDTMF, I'd think that you want it tightened, not relaxed. > You're not failing to detect DTMF, you're detecting it too quickly or > sensitively. > > These are just a few thoughts. I can't say I've experienced your problem > first hand. > > Good Luck > Dave > > On 3/29/06, Martin Glazer <[EMAIL PROTECTED]> wrote: > > Hi, > > > > Thanks for the all suggestions on wireless SIP phones, but now I have a > > more > > pressing problem. > > > > I've just setup a small Asterisk server which is connected to a Primus > > Voip > > line (as a regular PSTN line) going into a Digium FXO card (TDM400P). I > > am having a number of issues with the Primus line and was wondering if > > anyone had come across this previously or could recommend a solution, > > besides getting rid of the Primus line :-( > > > > - on an incoming call DTMF tones on the Primus line are doubled (ie, > > press 1 > > and I see in the Asterisk logs that 1 and then 1 was pressed). Not all > > digits > > are doubled. This obviously causes problems with the IVR and attempting > > to get to particular extensions. > > > > I have tried adding relaxdtmf=yes in my zapata.conf file, but this makes > > no > > difference. > > > > Thanks > > > > Martin > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > -- > David Donovan > Consultant > Fulcrum Solutions
