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ESW-520-48 and Polycom IP phones

I am a managed switch n00b.  Please forgive my lack of experience, but I think I have a relatively simple situation that I am just not totally clear on.

System configuration:

T1 from Cox => WAN Port of WRVS400N wireless Router

Port 1 of WRVS4400N to g1 of ESW-520-48 switch.

All Polycoms wired to switch ports (no desktop passthroughs)

All computer data on wireless

Switch is essentially default configuration out of box (sans static IP and gateway configuration to router)

Router set for high priority QoS for ports 5060-5080 (IP phones to remote hosted service)

There seems to be a large amount of bandwidth transferring between the WRVS4400N and the T1 (largest chunk aggregated as 802.1q or "wellfleet" according to Netprobe - screenshot attached).  From what I understand, this is VLAN tagging.  I am certain I may not be utilizing this correctly or at all.

Call quality is suffering due to bandwidth (or poor configuration) is a T1 after all.

Question is: What is the ideal configuration for the switch as I feel I have not utilized it at all here?  The only components on the switch are the phones.

Any other comments welcome (even the flaming kind - I'll try to pick out the constructive bits).

Thanks in advance.


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