asterisk users - Jul 2007 - Grandstream RTP keepalive packets causing Asterisk warning

Grandstream GXP-2000 with firmware 1.1.4.18 (beta) fixes an issue where 
the phone did not send rtp keepalives when on mute (resulting in 
disconnect from tech support hold and concalls)

A side effect seems to be that Asterisk pops the following warning on 
the console...

Jul 26 14:06:35 WARNING[31654]: rtp.c:463 ast_rtp_read: RTP Read too short

Grandstream say they are not sure what it is but "it should not affect 
anything".

In other words, "Don't worry, be happy!".

Any thoughts/experience on this?

regards,

Drew

-- 
Drew Gibson

Systems Administrator
OANDA Corporation
416-593-6767 x322
www.oanda.com

Grab a network trace (with e.g. Wireshark) and look at the payload type
and lengths of the RTP keepalive messages - if you post this information
to the list I'm sure someone will comment on what's happening.
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Drew Gibson
> Sent: 26 July 2007 19:23
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: [asterisk-users] Grandstream RTP keepalive packets 
> causing Asteriskwarning
> 
> Grandstream GXP-2000 with firmware 1.1.4.18 (beta) fixes an 
> issue where the phone did not send rtp keepalives when on 
> mute (resulting in disconnect from tech support hold and concalls)
> 
> A side effect seems to be that Asterisk pops the following 
> warning on the console...
> 
> Jul 26 14:06:35 WARNING[31654]: rtp.c:463 ast_rtp_read: RTP 
> Read too short
> 
> Grandstream say they are not sure what it is but "it should 
> not affect anything".
> 
> In other words, "Don't worry, be happy!".
> 
> Any thoughts/experience on this?
> 
> regards,
> 
> Drew
> 
> --
> Drew Gibson
> 
> Systems Administrator
> OANDA Corporation
> 416-593-6767 x322
> www.oanda.com
> 
> 
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