(single) Is the following description correct? ONT call emulation refers to the use of the ONT test module instead of the user's phone for call testing. When the ONT POTS user cannot provide voice…

(single) Is the following description correct? ONT call emulation refers to the use of the ONT test module instead of the user's phone for call testing. When the ONT POTS user cannot provide voice services, the ONT call simulation test is performed remotely through the OLT command line to help the user diagnose whether the POST user call of the ONT is normal. ONT can be offline when performing ONT call simulation