Can you provide more details? Many things are possible, but if we know your setup it's easier for us to respond.
If your existing router has a PBX built in, the Almond cannot do that.
You can keep your existing router as your primary link, and have the Almond in AP mode to give you better wifi signal.
You can have the almond as your main router, and have your phone router plugged in behind it. This may or may not work for VOIP.
