[Asterisk-video] 3G->SIP video but no audio

[barbara_b02 at libero.it]

Hi list!
Apologize me... but I need to ask you help for the same thing...
I've had to reinstall my Asterisk and I followed the instructions on http://sip.fontventa.com/trac/asterisk/browser/amr/README,
I've patched with "videocodec_nego_fix_ast-1.4.13.patch" and "10217-asterisk-unrestricted-digital-1.4.17.patch", I've written the right sip.conf and extensions.conf and I configured in the right way my X-Lite but calling 3G->SIP I have only video and no audio and the error is:

WARNING[21957]: chan_sip.c:3738 sip_write: Asked to transmit frame type 8192, while native formats is 0x8 (alaw)(8) read/write = 0x0 (nothing)(0)/0x0 (nothing)(0)

What am I forgetting?

I still can not make SIP->3G videocall...

Thank you for any help!

Regards
Barbara B.