abigailmorris

silent god, do not try to get help from Siemens - if they create such a website with a support that cannot be found, they may not intend to help their customers. However, you should try a software PBX instead of tinker a network in your office that you cannot use. I recommend the Ozeki PBX, we use it for a long time and it works troublefree. Take a look at this page: http://www.ozekiphone.com/what-is-voip-phone-343.html You can check the system with downloading the trial version. In opposite to the Siemens, the Ozeki Phone System has a very helpful support service.