If you have XM for businesses, it is legal. See the FAQ at http://www.xm4biz.com/ (I know because i just installed it at a customer location). If you want to listen to it over the phone's speaker, you need to create a service. For the service URL, in...
Create a new css for the agent's lines. Have the only partition in that CSS contain a translation pattern that matches all of your internal numbers. In the translation pattern, set the calling party mask to whatever you want the Caller Id to be (such...