[asterisk-users] VOIP Monitoring tools........

[Paddy Grice]

Hi
 
I use ADSL and SDSL on a lot of multi channel VoIP connections SIP and H323
and no real problems if you size the link correctly - this normally means
limiting no of calls to match available bandwidth.
 
Check out the upstream and downstream data rates and size on the smaller -
normally the upstream. the thing that is not normally explained is the
contention ratio at the local exchange. here in the UK residential broadband
packages normally have a contention ratio of 50:1 so at peak you could be
fighting with 49 other users. Contention ratios for business DSL packages
can vary from 1:1 to typically 20:1.
 
To monitor I use wireshark and look at packet loss on RTP. 
 
My home adsl connection is 7M downstream / 800K upstream with a 10:1
contention.I can normally get 20 x G729 channels without a problem much more
and things get stressed - also I have to watch what other things are going
on - downloads not too much of a problem because of the unbalanced
downstream/upstream speeds but peer to peer stuff is a real killer!
 
Paddy
 
 
 
 
 
  _____  

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of mike mosier
Sent: 25 April 2010 02:24
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] VOIP Monitoring tools........


Hey all
 
What VoIP networking monitoring, asterisk monitoring tools would you
recommend? I started working with an IT company that insists on using DSL
with a Sonicwall router. The problem is that the clients are having sound
problems. The owner is convinced that it's the Asterisk box. In the 4 yrs I
have been doing this I have not had this bad a sound problem and it always
came down to a bad setup in the Cisco router. Asterisk just doesn't have
sound problems so I am going to have to convince him that its either the
router or DSL. Has anyone used DSL for SIP traffic? How about Sonicwall
routers?
 
Michael D Mosier

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20100425/6a726f32/attachment.htm