ADSL Bandwidth BLF CTI Extension Fixed Line FTTC FTTP Gpbs Hosted Phone System HTTP ICT IPv4 IPv6 ISDN LAN 4G 5G Latency Leased M2M Mbps Ethernet EFM IP Telephony IVR NGN Openreach PBX PoE POTS PSTN QoS Router SIP Trunks SMS SMTP Speed dials Static Unified Comms Upload VPN VoLTE VoIP WAN Wi-Fi Withheld Number