Not shure if it helps here, but we had nearly the same dtmf problem in an asterisk 1.4 install with SNOM 320/360 phones. After hours of fiddling arround, we used relaxdtmf=yes in sip.conf and the problem went away. Guido
_____ Von: Ian [mailto:[EMAIL PROTECTED] Gesendet: Mittwoch, 30. April 2008 11:34 An: Asterisk Users Mailing List - Non-Commercial Discussion Betreff: [asterisk-users] DTMF Issues Hi all I am getting the feeling you are going to be hearing alot more from me in the near future. I have yet another issue here. This time its with DTMF (again). Ok the setup is as follows: We have a few Grandstream BT 200 phones and a few X-Lite phones. When dialing out to, say a bank, with the Grandstream the bank complains that it is unable to detect our DTMF tones. However when I do the same with the X-Lite it detects it correctly. Now I am in the process of implementing authentication into the system. This on the other hand detects Grandstream DTMF but not X-Lite DTMF. The Grandstream phones have been set up to send their DTMF via sip info (I set it up that way in order to use the *2 transfer feature). I have tried Zoiper and when I set it up to also send DTMF via sip info, the asterisk detects the DTMF correctly. Can anyone tell me what I can do to enable the DTMF to work? Thanks in advance. Ian -- www.vddi.co.za <http://www.vddi.co.za/> I Coetzee IT Tegnikus Telefoon : 012 664 2300 Selfoon : 079 522 6519 Faks : 012 644 2902 E-pos : [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> Skype : vddb_igcoetzee
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