I have seen too high of audio levels cause echo. It can also distort the audio. I imagine either of which I imagine the system can detect as a doubled digit. When I experienced this on some lines in Glufport, MS, random digits were doubled. He's tried everything else.
Brent Davidson wrote: > Would TXgain really affect DTMF detection all that much on an incoming > call? I can see how RXgain might cause some problems if it was too high > or too low, but I adjusted both of these settings according to the echo > cancellation guide using the Type 102 Milliwatt test lines. My rxgain > is already -2.8 and if I drop my txgain below +4 callers complain that > they can't hear the users on the Sip phones inside the offices. > > Thanks, > Brent > > Eric Wieling wrote: >> Lower the rxgain and txgain on your Zap channels. >> >> bilal ghayyad wrote: >> >>> Hi Brent; >>> >>> I have been suffering from this problem since about 2 >>> monthes and until now still did not resolved 100%. >>> >>> First of all, I need to tell u that mostly u have a >>> problem that the first digit is duplicated, for >>> example: if ur customer entered 108 then it will be >>> recognized 110 (the 1 duplicated, and then it takes >>> the 0, and it does not continue to take the 8 as it >>> completes the 3 digits ... this is just an example). >>> >>> Your problem is in the duplication for the digit and >>> specifically the first digit usually will be >>> duplicated. >>> >>> If u found a solution let me know. >>> >>> Regards >>> Bilal >>> >>> >>> --------------- >>> >>> I've recently installed Asterisk-based servers at >>> several of our branch >>> >>> offices. Each server has 2 X100P cards to handle 2 >>> incoming voice lines. I was having a lot of trouble with Echo until >>> I got OSLEC running on all of the servers, but now we have a new >>> problem. Incoming >>> >>> callers are not always able to dial extensions. I >>> would say probably 95% of the calls go through correctly, but that other >>> 5% always get dumped to the operator queue. I have relaxdtmf=yes in >>> my zapata.conf for both channels, but it doesn't always help. One >>> particular customer >>> >>> has trouble dialing an extension about 1 call in 5. I'm wondering if >>> it's just because they call us more than any of our >>> other customers or if there is some peculiarity with their phone >>> system. Anybody have any >>> >>> ideas what to try next? >>> Thanks, >>> Brent Davidson >>> >>> >>> >>> >>> ____________________________________________________________________________________ >>> >>> >>> Looking for last minute shopping deals? Find them fast with Yahoo! >>> Search. >>> http://tools.search.yahoo.com/newsearch/category.php?category=shopping >>> >>> _______________________________________________ >>> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >>> >>> asterisk-users mailing list >>> To UNSUBSCRIBE or update options visit: >>> http://lists.digium.com/mailman/listinfo/asterisk-users >>> >>> >>> >> >> > > > ------------------------------------------------------------------------ > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users -- Consulting for Asterisk, Polycom, Sangoma, Digium, Cisco, LAN, WAN, QoS, T-1, PRI, Frame Relay, Linux, and network design. Based near Birmingham, AL. Now accepting clients worldwide. _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
