Asterisk 1.6.3 on Elastix
I have 3 trunks all of them using RFC2833 DTMF
I've Linksys Sipura SPA941-942
On the phones (both have the same problem:
DTMF Tx Method: AVT (tried Info, Inband, Auto).
On the other trunks the tones are sent ok.
On the Skype trunk, the tones fails, but not always. Usually when we tried to access to Global Conferences Servers.
There the system does not recognize even the #, I just not detect any key entered at all.
The codecs used are g729 and g711.
Please let me know if you need any additional info, I've tried a lot now, without luck