[Asterisk-Users] Musiconhold interrupted sound

[Michael Ulitskiy]

On Monday 04 August 2003 02:56 pm, Jamie Neil wrote:
> Quoting Michael Ulitskiy [mulitskiy at acedsl.com]:
> > Hi again,
> >
> > Am I really the only one who's having this problem?
> > Music on hold playing like this is very annoying and
> > practically unusable.
> 
> Hi Michael,
> 
> No - you're not alone :)

Glad to hear. Then there's a hope it's gonna be fixed :)
 
> I've had similar problems with SIP since I started experimenting with *
> nearly a year ago. I still get it on my current cvs system every now and
> then although it's not nearly as bad as it used to be. Sometimes the moh
> will start off ok but then seem to lose sync and break up after a minute or
> so, other times (like now ;) ) it seems perfect apart from the odd little
> glitch. I just put it down to the fact that I have no real zap devices
> (chan_capi & sip only) and so rely on ztdummy for timing. I was hoping that
> when I got around to putting an digium fxs card in, the problem would
> disappear completely!

The strange thing is that the fact whether ztdummy is loaded or not does not
really affect sound quality in my case. I guess asterisk might not using/seeing it.
Does it requires some special configuration? 

> I may be wrong, but I seem to remember that Michael Manousos' oh323 channel
> driver was _not_ affected by this problem (this was before Jeremy McNamara's
> h323 channel was usable), maybe because it doesn't use the same * libraries
> as other voip channels, however it's been a while since I played with h323
> so I don't know if that's still the case.

This sounds really strange to me as I think the problem is central to asterisk, not to 
particular driver and behavior is exactly the same over sip and chan_h323.
Ok. I'll try chan_oh323 and see if it makes any difference.

> Jamie Neil
> Versado I.T. Services Ltd.

Thanks Jamie.

Michael

> 
> > One more detail. The sound interruption happens only
> > when 2 endpoints are actually connected and one of them
> > put the other on hold. If I set a special extension with
> > SetMusicOnHold application it seems to play just fine.
> > Please help!
> > Thank you.
> >
> > Michael
> >
> > On Friday 01 August 2003 04:58 pm, Michael Ulitskiy wrote:
> > > Hi,
> > >
> > > I don't seem to be able to get music on hold to play normally.
> > > The sound gets often interrupted with a few seconds of silence
> > > then starts playing again. I'm using mpg123-0.59r and tried
> > > mp3 files with different sample rates with no luck. If that matters,
> > > endpoints are SIP ata186, SIP Cisco 7960 and H.323 (over chan_h323)
> > > Quintum Tenor.
> > > Sometimes it may play fine for a few minutes then getting worse
> > > again. I've noticed that the following messages look directly
> > > connected to sound interruptions:
> > > on asterisk console:
> > > NOTICE[245776]: File rtp.c, Line 239 (process_rfc3389): RFC3389
> > support incomplete.  Turn off on client if possible
> > > in debug log:
> > > Aug  1 16:43:58 DEBUG[32771]: File res_musiconhold.c, Line 292
> > (monmp3thread): Only wrote -1 of 640 bytes to pipe
> > > The music stops playing simultenuously with these messages appearing.
> > > Also I've tried to install ztdummy and zaprtc drivers (no
> > zaptel hardware installed).
> > > None of them helped.
> > > Asterisk version is CVS-07/30/03-18:53:16
> > > If anybody has any idea on how to fix it or what can be done to further
> > > troubleshoot it, I'd appreciate hearing from you.
> > > Thanks.
> > >
> > > Michael
> > >
> 
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
>