The cell line will connect my iPhone with the telephone network. This will be simple, and to the point. The carrier will provide unlimited domestic voice with inclusion of Canada, and Mexico. I will also have 5G data, and support for unlimited SMS. Since I don’t use apps like WhatsApp, the messaging options will be limited to iMessage, RCS, and SMS. While I only need one cellular line, the phone can support 2 lines. This is because all iPhones are dual SIM. I don’t see me needing to use a second cellular line, so there will be no such service. The single line will work well enough.