Is there a SIP to analog phone adapter that works with the UC320. I have used a Linksys PAP2T in the past to do this with other phone systems. I am not sure if the UC320 will support this type of device. I know the SPA8800 will accomplish the same thing, but I don't need 8 additional analog lines. I need 1 extra analog for a 900 Mhz cordless phone. Any ideas on using different equipment are welcome.