Voice and Data Network Setup

Cisco Phones
I have two ISP's. One strictly for Voice data and the other is strictly for Data.  I have about 40 users with 40 7961G Cisco IP Phones.  I have one Cisco 48 port POE switch, and I have two Gateways (one for each ISP). How do I setup a network that will: 1. have all the voice traffic go over the voice ISP 2. have all other Internet activity go over the Data ISP 3. utilize the switch on the 7961G Cisco phones (1 to connect the phone to the voice network. 2. Connect the PC's to the PC port on the phone and connect to the DATA ISP. I hope this makes sense. Can I have one Cisco switch connected to two different gateways?  The Cisco phones will all be connected to this Cisco Switch, but can the additional PC port on the phone be on a separate VLAN that can gain access to the outside world using the DATA ISP? Thanks, Arshad

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Good Evening,

Use 3CX (PDX) on any windows for Voice, and have that run on any gateway. Plug your Data (PC’s) on a different switch, have that multiplex on the same router or the a different gateway for Load Balancing, But always configure your router to perferbly use Qos on the Voice.

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  • Sixball
    Your set-up is relativley simple: Set up 2 different VLANs - one for voice, one for data. (Voice VLAN 5, Data VLAN 10 in this example) Put them on different subnets and then set up your router.. On your router, make sure that you have DHCP set up for each VLAN, and, to "force" voice to one ISP, give the Voice VLAN the gateway (or route that VLAN to the interface) that the VOIP provider is on. Force/route the Data VLan out the other ISP.. Cisco phones that have a "PC port" in them are literally using a mini-switch, so yes, the phone itself will segregate the data/voice traffic. The link from your phone to your switch is, very simply, a mini-trunk. Your Data is untagged traffic (like any other PC) and the voice traffic comes through on it own "tagged" VLAN. Then, as SStelecom mentions, set up QOS on routers / switches to prioritize the voice VLAN traffic...
    8,705 pointsBadges:

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