Everyday phone twine (cat3) and (rj11) jacks do no longer aid voip. Every notebook in which you may be installing a voip cellphone need to have category five (cat5), class five stronger (cat5e), or category 6 (cat6) cabling installed with an ethernet (rj45) jack. Cat6 cabling have to be used wherein throughput of extra than 100mbps is favored. You could paintings with centurylink, centurylink expert services, an electrician, or company of your desire to put in the cabling. I'm operating on a challenge where i need to make a community for all pcs inside the web site. I want about 8 ethernet sockets in every workplace of the site. I found that there is already two ethernet sockets in every workplace but they're related to voip phones (siemens openstage 15) .