For that last month my OBI 110 has apppeared to be ringing for 105 seconds before going to voice mail. I am using phone power as my provider. I changed their "Call Forwarding" feature which controls the duration of when to call traansfers to voicemail. Tweaking this setting did not correct the issue. Working with phone power technical support on a mobile call, they set the wait time to 6 seconds and the called my home number. On phone power side, the call transferred to voice mail in 6 seconds, however the obi110 kept ringing for 105 seconds. I have no changed anything on the Obi or SIP provider in the last few years, any thoughts on how to correct this issue. Phone Power suggested upgrading to a new Obi devive that was still supported.