Modem changed at the SL100 side. Everything on the Ip phone is working, DSS,CLID,display,ICM DT, can answer an inbound call. I can access a line on the IP phone, I don't get DT, but can dial my cell phone, answer the call on my cell phone, talk from the IP phone to my cell phone that answered the call , but when I talk from my cell phone to the IP phone, I don't here the audio from my cell phone on the IP phone. Time for a reset?