Do you know how many digits your carrier is expecting to recieve from you? Are you using an E.164 dial plan? For testing, I'd strip down your dial-peers and get rid of the sip profiles, digit strip, etc. Here is sample config from my lab which is wo...
I agree with you Chidananda, I have had this same problem in the past and the full blown factory reset didn't correct the issue, only after I individually reset the Security would it pull the correct time again.
I realize this thread is old, but I wanted to reply since I found the information about the Bug to be helpful. I was having this same problem, I had 4 phones with a shared line appearance. I would call and the line would ring for a half a ring and th...