I am planning to configure my 1st VOIP installation using 2 3750 switches stacked togather and 3rd switch linked up via SFP Gigabit link. I have planned to use 5 vlans. The total users are 70 and this is a stand alone site.
For IPT phones and servers, my customer is using an external supplier to provide and install Voice servers and VOIP phoes. All voice hardware is MITEL make. I am not involved in Voice but i need to ensure the 3750's are configured correctly to work with Voice. I need your help as this is going live over the weekend. I have managed to speak to someone from MITEL and he provided me following guidelines:=
I have read the latest software configuration guide for Cisco 3750 but still unsure about the above 5 points.
I will really appreciate if someone can post relevant config parts specific to my case, an interface configuration to link MITEL IP3300 Voice Server as well as an interface configuration to connect MITEL phone.
I am ok with regards to VLANs, intervaln routing and standard data links as I have done this in the past with another customer using 2950, 2960 and 3560 switches but confused with VOIP, COS, DSCP and MLS parts.
I don't thonk I will need to do any policing as VOICE calls will not hit the WAN Router. But please put me right if i am wrong here..
The voice VLAN feature enables access ports to carry IP voice traffic from an IP phone. When the switch is connected to a Cisco 7960 IP Phone, the phone sends voice traffic with Layer 3 IP precedence and Layer 2 class of service (CoS) values, which are both set to 5 by default. Because the sound quality of an IP phone call can deteriorate if the data is unevenly sent, the switch supports quality of service (QoS) based on IEEE 802.1p CoS.
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