asterisk users - Dec 2003 - RTP Codec Error(s) - Is there really a solution for this or these?

Hi All,

I have add the below error ever since installing and running with * for 
the past 6 months.  It only occurs on calls from * to a H.323 gateway.  I 
am using chan_h323.

I have searched HI and LOW for a solution within the archives and 
elsewhere. 

When the error presents on the console - there is a millisecond pause in 
the active voice call........ . . . . 


NOTICE[1265529664]: File rtp.c, Line 418 (ast_rtp_read): Unknown RTP codec 
19 received
NOTICE[1265529664]: File rtp.c, Line 418 (ast_rtp_read): Unknown RTP codec 
19 received



Thanks in desparation for any ideas....





Regards,

Steven Thomas


Technical Project Manager
Network & Connectivity  Services, IBM Australia

Ph: 0404 099 262 
NH011, IBM Centre, St Leonards, 2065
Internet:  vcsteven@au1.ibm.com

Visit us at http://www.ibm.com/services/au/its
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On Wednesday 10 December 2003 23:15, Steven Thomas
wrote:
> Hi All,
>
> I have add the below error ever since installing and running with *
> for the past 6 months.  It only occurs on calls from * to a H.323
> gateway.  I am using chan_h323.
>
> I have searched HI and LOW for a solution within the archives and
> elsewhere.
>
> When the error presents on the console - there is a millisecond pause
> in the active voice call........ . . . .
>
>
> NOTICE[1265529664]: File rtp.c, Line 418 (ast_rtp_read): Unknown RTP
> codec 19 received
> NOTICE[1265529664]: File rtp.c, Line 418 (ast_rtp_read): Unknown RTP
> codec 19 received
First, the solution:  the provider needs to turn off Comfort Noise.
Second, the vendor of the product needs to update their equipment to
use the RIGHT codec number for Comfort Noise, which is 13.  RTP 19 has
been reserved (i.e. deprecated) for several years and SHOULD NOT BE
USED.

-Tilghman

On Thu, 2003-12-11 at 03:26, Tilghman Lesher wrote:
> On Wednesday 10 December 2003 23:15, Steven Thomas wrote:
> > Hi All,
> >
> > I have add the below error ever since installing and running with *
> > for the past 6 months.  It only occurs on calls from * to a H.323
> > gateway.  I am using chan_h323.
> >
> > I have searched HI and LOW for a solution within the archives and
> > elsewhere.
> >
> > When the error presents on the console - there is a millisecond pause
> > in the active voice call........ . . . .
> >
> >
> > NOTICE[1265529664]: File rtp.c, Line 418 (ast_rtp_read): Unknown RTP
> > codec 19 received
> > NOTICE[1265529664]: File rtp.c, Line 418 (ast_rtp_read): Unknown RTP
> > codec 19 received
> 
> First, the solution:  the provider needs to turn off Comfort Noise.
> Second, the vendor of the product needs to update their equipment to
> use the RIGHT codec number for Comfort Noise, which is 13.  RTP 19 has
> been reserved (i.e. deprecated) for several years and SHOULD NOT BE
> USED.
	Probably a Cisco router. AFAIR new CVS has the patch to recognize
payload 19 as CN, anyway is trivial to add it. If your?re using Cisco
stuff use "no vad" on the dialpeer.

-- 
Juanjo sin .sig