Vlan networking for VoIP

Unanswered Question
Jun 21st, 2010
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Hi. I am helping out a friend who owns a small business with their ip phone system.

This is their current setup:

Internet -> Qwest DSL -> Watchguard Firewall -> Unmanaged swithch -> Cisco Phones w/ computer attached

This is the one they want installed:

Internet -> Qwest DSL -> Watchguard Firewall -> Cisco 3550 -> Cisco Phone w/ computer attached


-I created 2 VLANs; one for data and the other for voice.

-Phones are setup to get DHCP from Asterisk server (2 nics).

-Switch is configured to trust phone quality (CoS) setting (5).


How do/should I configure QoS? What else do I need to do to make IP phone work? How should I connect the VLANs or should I leave them separated indefinitely. Thanks

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