A Office telephone / phone adds that extra bit of style, helping a hotel choose a office telephone that stands out and means the handset can fit in with the style of the room, rather than standing out too much. Office Telephones are used for a variety of different purposes. Some request wake up calls, others use it to order room service and they also like to have the landline there, just in case an emergency happens in the night.at GPO we offer a range of our products including push button or rotary dial telephones. All are compatible with modern phone lines and could even be used for telephone banking. They have authentic bell rings and come in a range of colours.