I am having issue with OS 7100 at 2 different sites with same issue. Both have SIP trunks that are working fine until one of these 2 things happen:
1 - the system experiences a power-down/power-up
2 - or if the internet goes down and then recovers

The OS7100 will not reconnect automatically to the SIP carrier when the phone system powers up. I have to go to 5.2.13 "sip carrier options" to disable the SIP server and then re-enable, save, and refresh about 4-6 times to get the connection back on line. I have upgraded the software to 4.95 but was not a solution. this is causing me alot of pain and embarrassment. Any suggestions would be appreciated!