The tiptel Htek UC46 is an expansion module for the tiptel 3030, Htek UC862, Htek UC924 and Htek UC926 IP phone. It is connected to the PC port of the IP phone. A maximum of six modules can be used with one IP phone. The Htek UC46 has 40 BLF function keys on two levels. It is possible to switch quickly between the levels via two separate keys. Each key has a bicoulored LED. The programming of the expansion module is carried out with the IP phone.