[asterisk-dev] Sound Tone DTMF in Conference...I need help!!!

[Adriano]

Hello,
 
I´m developing a conference systems at asterisk.
Each conference room supports 4 people. I developed a function to change conferece rooms dialing 3.
What is happening now is that when the conference participant dials 3 all other conference participants hear the dial sound, which makes the conference a mass.
How can I solve the issue, so the other conference participants do not realize that one of the participants have dial 3?
 
I use
Asterisk 1.4.4 
Zaptel 1.4.2.1
2 Digium Card TE205P
-Protocol EuroISDN
-Zaptel.conf-
loadzone=br
defaultzone=br

span=1,0,0,ccs,hdb3,crc4 
bchan=1-15 
dchan=16 
bchan=17-31
 
span=2,0,0,ccs,hdb3,crc4 
bchan=32-46 
dchan=47 
bchan=48-62 
 
span=3,0,0,ccs,hdb3,crc4 
bchan=63-77 
dchan=78 
bchan=79-93 
 
span=4,0,0,ccs,hdb3,crc4 
bchan=94-108 
dchan=109 
bchan=110-124 
 
Best regards,
Adriano 
 
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