[Asterisk-Users] Help - is voip good for in-house calls?

[Jay Milk]

Network traffic really shouldn't be much of a concern if you have decent
n-way switches installed -- pretty much all "mainstream" switches these
days use n-way (Address Table, etc... Lots of names for the same
technology).  Those switches basically have enough smarts to know where
the packets are going, and to isolate a datastream to the destination
port.  So if you have voice-traffic between ports 1 and 2, ports 3-16
won't even see it, so it doesn't bog down a whole network segment.  In
my setup (2xLinksys 4116 switches), I can stream video at full speed
from my server to a ReplayTV unit without hearing so much as a click on
an internal phone conversation -- the LEDs on the ports show traffic
limited to the appropriate ports.

QOS comes into play only when you have to route the voice-traffic over a
WAN connection and it has to compete with data going over the same link.
If you have a T1 coming into the office and place a VOIP call, then
someone downloading a huge file needs to give up bandwidth to let the
voice traffic through.

> -----Original Message-----
> From: Wiley E. Siler [mailto:wsiler at e2020inc.com] 
> Sent: Saturday, August 14, 2004 4:43 PM
> To: asterisk-users at lists.digium.com
> Subject: RE: [Asterisk-Users] Help - is voip good for in-house calls?
> 
> Also, my HP switch has COS (class of service which is like 
> QOS) so I can prioritize the packets coming from my phones 
> over the standard network traffic.  Even without this 
> switching feature turned on, performance was great.  The 
> 
> -----Original Message-----
> From: Francis Augusto Medeiros [mailto:francismedeiros at gmail.com] 
> Sent: Saturday, August 14, 2004 1:08 PM
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] Help - is voip good for in-house calls?
> 
> My concerns are most latencies. Our network will be a switch 
> with lots of ports, all 100mb/s, with VERY low traffic.
>