I'm running the 3CX System with SIP Service Providers. We have one VOIP line through the cable company that comes of their router. A user would like this line added to their Polycom or a Cisco Phone. Therefore eliminating the need for two phones sitting on the desk. This line goes to about two or three people. My question is this. I have a Linksys SPA 3000. Would it be possible to hook the line out of the modem up to this, then program it as an Extention in 3CX? The user just needs to be able to answer the line and or dial out on it. The other users do not care about having a second phone. However I'm afraid if this is setup and it rings in, then it will go straigh to the PBX and the others will not here it ring. Any suggestions?