, : -- -- SDN : 21 Asterisk 14 CentOS 7 27, 2017 5000 0 38 4 E1 Dinstar MTG200 Asterisk 25, 2018 0 0 1 3 FMC (Fixed Mobile Convergence): ? 13, 2018 1000 0 4 5 Leaf Spine 15, 2018 6000 0 5 5 01, 2018 7000 0 0 23 Digium TE122 Asterisk 20, 2019 1000 0 0 2 Huawei SoftX3000 20, 2020 0 0 0 11 SIP- SoftX3000 21, 2020 0 0 0 9 40 IT - 27, 2020 17000 0 2 12 - 27, 2020 0 0 0 16 1 2 3
