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Good Day
Everybody, I am in the process of planning a
phone system for a small business (15 extensions - 4 PSTN lines [to be connected
by ATAs]). The plan is to install an IP Phone everywhere there is an existing
computer workstation - using the same LAN for phones and
computers. The layout involves workstations
connected to two switches (the unmanaged 'dumb' type) and the switches linked to
each other by a buried cable. This
link between the switches is a bottleneck - large file transfers through the
link are common enough that a disruption to VoIP traffic is pretty much
guaranteed. I'm convinced that a QoS-based
approach is the way to ensure file transfers do not interrupt VoIP traffic. (not to mention the fact that I
don't want to have to dig a ditch in the ground to run another cable parallel to
the existing link). What are your opinions and
experiences with: 3COM 4500, Linksys SRW224G4? (The 3COM is already pushing the
budget limit. I'm sure you get what you pay for with Linksys but - that being
said - would it work? Decently well?) Any thoughts on cheaper
approaches such as: D-Link DI-102 (Little Packet Priortizer with 2 RJ45
ports), or lower-end routers with
QoS abilities like a WRT54GS? (I'm
guessing these are more likely to cause a lot more packet loss than using
managed switches) We are planning on using either
Polycom 501, or SNOM 320/360s. Does
the switch built into the phone handle QoS for the attached
computer? Thank you for your input.
Dana Harding |
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