[Asterisk-Users] Do we need a QOS switch ?

[Ron Senykoff]

> >> We have 10 people on our network and each person will have a SIP phone
> >> connected to our Asterisk server.  All phones, Asterisk, other servers and
> >> users workstations will be using the same network.  The question is: would
> >> I need a QOS device to give SIP traffic a chance?  Our internal network is
> >> 100M.  We will have a ISDN30 for outgoing calls.  No calls will be made
> >> over the internet.
> >>

We have dealt with this issue in small offices by using phones that
contain a switch (Polycom IP500s) and do their own QoS. In other
words, all the users' PCs are hooked into their phone, so any
excessive traffic does not interfere with the phone. Since the phones
then hook directly into the same switch that the PBX (Asterisk) hangs
off, quality has been fine. Keep in mind this is for small offices
like you describe. Provided the topology of your switches is OK, you
should be fine. Just don't uplink to another switch where you can
create a non-QoSd bottleneck link.

-Ron