I just installed a SPA 3000 on my * box. Everything seems to work fine except once a call is answered, i.e. by any auto attendant at a customer site, I cannot send DTMF digits to select an extension, etc. I have called another outside phone and tested it and it seems as if the DTMF is getting trashed.
I have tried both inband and RFC2833.
Any ideas from anyone would be appreciated.