Sudhir Kumar wrote:
> I have configured my GS HT-486 for "send dtmf" in audio, and on
the
> asterisk box, sip.conf has dtmfmode set to inband. Everything seems to
> be working fine, however, I see my console get flooded with the
> following warning:
> "dsp.c:1467 ast_dsp_process: Unable to process inband DTMF on 256
> frames"
>
> Should I be cautious about them or just ignore? Better still, what
> should I do so that these warnings are not generated.
First off, upgrade your Asterisk code. That error message is quite a bit
more friendly now (not to mention all of the other improvements :)
Secondly, inband DTMF does not work on G.729 (or 256 in Asterisk's terms)
*CLI> show codecs
Disclaimer: this command is for informational purposes only.
It does not indicate anything about your configuration.
1 (1 << 0) G.723.1
2 (1 << 1) GSM
4 (1 << 2) G.711 u-law
8 (1 << 3) G.711 A-law
16 (1 << 4) G.726
32 (1 << 5) ADPCM
64 (1 << 6) 16 bit Signed Linear PCM
128 (1 << 7) LPC10
256 (1 << 8) G.729A audio
512 (1 << 9) SpeeX
1024 (1 << 10) iLBC
65536 (1 << 16) JPEG image
131072 (1 << 17) PNG image
262144 (1 << 18) H.261 Video
524288 (1 << 19) H.263 Video
Jeremy McNamara