So I have read a couple posts on here about this topic but couldn't quite find a clear answer to my question. My mom is being instant on wanting to tell people to silence their cell phones during the ceremony. The ceremony will be outside and my Uncle, who is a pastor, will be officiating but it won't be a religious ceremony. She wants to have him make an announcement prior to the start of the ceremony. We are not doing programs so putting a small line in there isn't an option. She did say she would be okay with a sign near where the ceremony will take place. Have other people done this or seen it done? Would you be okay with either of these options or find it odd?