I guess that will work if you have enough money to buy 100% additional hardware, and there won’t be any physical connection between the two networks (if there is, then you run the same danger).  However, deploying QoS would be significantly cheaper.

From: Blair Harrison [mailto:nznog@jedi.school.nz]
…

Another option might be to put your voice traffic on a totally separate switching infrastructure from your data traffic.
This will stop nasty big data packets from impinging on your call quality.
Of course this isn't going to be a solution for everyone as everyone's network design is different.


Cheers,
Blair