[asterisk-users] Audio going blank for a few seconds andthencomes back. What could be the reason?

Rob Schall rschall at callone.net
Fri Jun 1 06:24:41 MST 2007


We have the same problem with our system. Unless you have a solid (not
just high speed) connection between the 2 parties, you're going to get
silence a few times during the call. We had set up a user on a business
comcast high-speed, thinking that would be more than enough. Turned out
though, with most high speed solutions, there is some limited packet
loss and its just to be expected. You internet browsers, etc, would
normally just re-request the packet and move on, but with a stream,
you're out of luck. The only real solution is to have a dedicated T1 or
mpls connection or something like that for perfect quality. We have
solid connections between our offices and haven't had a problem yet.

Steve Hanselman wrote:
>
> You can use tcpdump or ethereal (wireshark now) to capture the stream
> and then see if there was loss during the call, just leave a capture
> going then get your users to mark out the time at which they
> encountered the silence, compare this to the server time (e.g. their
> watch to the server) to get a time difference, then figure out what
> time you need to look at in the trace.
>
>  
>
>  
>
> Steve
>
>  
>
> ------------------------------------------------------------------------
>
> *From:* asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] *On Behalf Of
> *Zeeshan Zakaria
> *Sent:* 01 June 2007 13:02
> *To:* Asterisk Users Mailing List - Non-Commercial Discussion
> *Subject:* Re: [asterisk-users] Audio going blank for a few seconds
> andthencomes back. What could be the reason?
>
>  
>
> There are some remote extensions connected on this system, and calling
> long distance is purely on voip. These remote extensions also face the
> same thing, i.e. audio going blank for a few seconds, when dialing
> long distance. So in this case, no PRI is involved. Its either the
> server, or the network. Now I don't know how to find out what is it
> and why?
>
> On 6/1/07, *Steve Hanselman* <SteveH at brendata.co.uk
> <mailto:SteveH at brendata.co.uk>> wrote:
>
> I think this is more related to the PRI, we've been seeing this for a
> few weeks now, and our environment is bridged PRI-PRI on the same board.
>
>  
>
> Steve
>
>  
>
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