The market is full of landline phone manufacturers and service providers. the types of phone you are going to select will depend on both the service you want to have and the telephone set you use to avail the service.
As far as the sets are concerned, there are two types, corded and cordless. Both these types of sets are available in desktop and wall mounted variants. the corded phones restrict you to one place only while the cordless set allows you to move around your place while talking. thus you can receive a call in the kitchen and take the phone to your bedroom if it's private. Another advancement in telephony architecture is 'multiline connectivity'. this means that your landline can receive two calls simultaneously and you also have two receivers. you can either put one call on hold while you take the other one or someone else can receive the second incoming call from the other receiver. thus, the chances of missing any important calls are reduced. moreover, multiline phones allow conference calling whereby you can connect to five other numbers and have a conference meeting without having to move out of your office.
Technological progress has led to the introduction of very unique landline options. These make use of advanced telecom infrastructures that allow extremely cheap long distance calls and true landline versatility.
VoIP phones are the most important upcoming landline phones of today's world. These landlines carry voice and picture over internet protocols from one point to the other. the telephone sets are expensive, a one time investment but the charges per call are almost none. the only expense incurred is the monthly internet service charge. These phones are ideal for technology based businesses like technical assistance providers, telemarketing companies and multinationals who regularly communicate with their offices in other countries. VoIP sets are expensive because they are incorporated over PABX systems. A PABX is an independent exchange system, implemented in large organizations that have one universal number and extensions to the hundreds of different phones in the offices world wide.
ISDN phones are another advanced telephony system. ISDN means 'Integrated Service Digital Network'. These landlines carry both voice and data, thus they allow fax and voice calls from one single platform. moreover, you can receive a fax and talk on the phone simultaneously. they are ideal for small and medium enterprises who do not have too many international calls but a lot of local business.
Described above were some of the most common types of landline phones available in the market today. There are others but not to popular either because they are tough to use or way too expensive to compete in today's market.
