Proposal 1: For the support of voice-over-GEO in NB-IoT NTN, align the assumption on the "UE_Antenna_Gain (a.k.a. G_Tx)", corresponding to G in the FS_ULBC Pdoc, with the one of 5G NR-NTN (i.e., UE_Antenna_Gain (a.k.a. G_Tx): -5.5 dBi).